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113215488 = 211318427
BaseRepresentation
bin1101011111110…
…00100000000000
321220000221110020
412233320200000
5212440343423
615122333440
72543213211
oct657704000
9256027406
10113215488
11589a8521
1231aba280
131a5bcb19
1411071408
159e154e3
hex6bf8800

113215488 has 48 divisors (see below), whose sum is σ = 301850640. Its totient is φ = 37736448.

The previous prime is 113215483. The next prime is 113215561. The reversal of 113215488 is 884512311.

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (113215483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3070 + ... + 15357.

It is an arithmetic number, because the mean of its divisors is an integer number (6288555).

Almost surely, 2113215488 is an apocalyptic number.

It is an amenable number.

113215488 is an abundant number, since it is smaller than the sum of its proper divisors (188635152).

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

113215488 is an equidigital number, since it uses as much as digits as its factorization.

113215488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18452 (or 18432 counting only the distinct ones).

The product of its digits is 7680, while the sum is 33.

The square root of 113215488 is about 10640.2766881318. The cubic root of 113215488 is about 483.7659319446.

Adding to 113215488 its reverse (884512311), we get a palindrome (997727799).

The spelling of 113215488 in words is "one hundred thirteen million, two hundred fifteen thousand, four hundred eighty-eight".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 64 96 128 192 256 384 512 768 1024 1536 2048 3072 6144 18427 36854 55281 73708 110562 147416 221124 294832 442248 589664 884496 1179328 1768992 2358656 3537984 4717312 7075968 9434624 14151936 18869248 28303872 37738496 56607744 113215488