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72142848 = 2123219103
BaseRepresentation
bin1000100110011…
…01000000000000
312000202020101100
410103031000000
5121432032343
611054134400
71534130001
oct423150000
9160666340
1072142848
11377a4a98
12201b1400
1311c3bc9b
14981d1a8
1565009d3
hex44cd000

72142848 has 156 divisors (see below), whose sum is σ = 221484640. Its totient is φ = 22560768.

The previous prime is 72142813. The next prime is 72142871. The reversal of 72142848 is 84824127.

It is a super-2 number, since 2×721428482 = 10409181035102208, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 700365 + ... + 700467.

Almost surely, 272142848 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 72142848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (110742320).

72142848 is an abundant number, since it is smaller than the sum of its proper divisors (149341792).

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

72142848 is a wasteful number, since it uses less digits than its factorization.

72142848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152 (or 127 counting only the distinct ones).

The product of its digits is 28672, while the sum is 36.

The square root of 72142848 is about 8493.6946024684. The cubic root of 72142848 is about 416.2917086145.

The spelling of 72142848 in words is "seventy-two million, one hundred forty-two thousand, eight hundred forty-eight".

Divisors: 1 2 3 4 6 8 9 12 16 18 19 24 32 36 38 48 57 64 72 76 96 103 114 128 144 152 171 192 206 228 256 288 304 309 342 384 412 456 512 576 608 618 684 768 824 912 927 1024 1152 1216 1236 1368 1536 1648 1824 1854 1957 2048 2304 2432 2472 2736 3072 3296 3648 3708 3914 4096 4608 4864 4944 5472 5871 6144 6592 7296 7416 7828 9216 9728 9888 10944 11742 12288 13184 14592 14832 15656 17613 18432 19456 19776 21888 23484 26368 29184 29664 31312 35226 36864 38912 39552 43776 46968 52736 58368 59328 62624 70452 77824 79104 87552 93936 105472 116736 118656 125248 140904 158208 175104 187872 210944 233472 237312 250496 281808 316416 350208 375744 421888 474624 500992 563616 632832 700416 751488 949248 1001984 1127232 1265664 1502976 1898496 2003968 2254464 3005952 3796992 4007936 4508928 6011904 8015872 9017856 12023808 18035712 24047616 36071424 72142848