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134479872 = 2183319
BaseRepresentation
bin10000000010000…
…00000000000000
3100101001021201000
420001000000000
5233411323442
621202212000
73222026412
oct1001000000
9311037630
10134479872
1169a0179a
1239054000
1321b268b7
1413c089b2
15bc15d4c
hex8040000

134479872 has 152 divisors (see below), whose sum is σ = 419429600. Its totient is φ = 42467328.

The previous prime is 134479871. The next prime is 134479879. The reversal of 134479872 is 278974431.

It is a tau number, because it is divible by the number of its divisors (152).

It is a taxicab number since it can be written as a sum of two cubes in more than one way. Here 134479872 = 643 + 5123 = 2883 + 4803.

Its product of digits (338688) is a multiple of the sum of its prime divisors (24).

It is not an unprimeable number, because it can be changed into a prime (134479871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (2) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7077879 + ... + 7077897.

Almost surely, 2134479872 is an apocalyptic number.

134479872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 134479872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (209714800).

134479872 is an abundant number, since it is smaller than the sum of its proper divisors (284949728).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

134479872 is an frugal number, since it uses more digits than its factorization.

134479872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64 (or 24 counting only the distinct ones).

The product of its digits is 338688, while the sum is 45.

The square root of 134479872 is about 11596.5456925759. The cubic root of 134479872 is about 512.3331165546. Note that the first 3 decimals are identical.

The spelling of 134479872 in words is "one hundred thirty-four million, four hundred seventy-nine thousand, eight hundred seventy-two".

Divisors: 1 2 3 4 6 8 9 12 16 18 19 24 27 32 36 38 48 54 57 64 72 76 96 108 114 128 144 152 171 192 216 228 256 288 304 342 384 432 456 512 513 576 608 684 768 864 912 1024 1026 1152 1216 1368 1536 1728 1824 2048 2052 2304 2432 2736 3072 3456 3648 4096 4104 4608 4864 5472 6144 6912 7296 8192 8208 9216 9728 10944 12288 13824 14592 16384 16416 18432 19456 21888 24576 27648 29184 32768 32832 36864 38912 43776 49152 55296 58368 65536 65664 73728 77824 87552 98304 110592 116736 131072 131328 147456 155648 175104 196608 221184 233472 262144 262656 294912 311296 350208 393216 442368 466944 525312 589824 622592 700416 786432 884736 933888 1050624 1179648 1245184 1400832 1769472 1867776 2101248 2359296 2490368 2801664 3538944 3735552 4202496 4980736 5603328 7077888 7471104 8404992 11206656 14942208 16809984 22413312 33619968 44826624 67239936 134479872