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70044374440 = 23517208349451
BaseRepresentation
bin100000100111011111…
…0000101010110101000
320200210111211220011101
41001032332011112220
52121422324440230
652102234011144
75026523234125
oct1011676052650
9220714756141
1070044374440
1127784250267
12116a9876ab4
1367b36b3311
14356688774c
151c4e478aca
hex104ef855a8

70044374440 has 64 divisors (see below), whose sum is σ = 166953908160. Its totient is φ = 26356454400.

The previous prime is 70044374431. The next prime is 70044374447. The reversal of 70044374440 is 4447344007.

It is a self number, because there is not a number n which added to its sum of digits gives 70044374440.

It is not an unprimeable number, because it can be changed into a prime (70044374447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1391715 + ... + 1441165.

It is an arithmetic number, because the mean of its divisors is an integer number (2608654815).

Almost surely, 270044374440 is an apocalyptic number.

It is an amenable number.

70044374440 is an abundant number, since it is smaller than the sum of its proper divisors (96909533720).

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

70044374440 is a wasteful number, since it uses less digits than its factorization.

70044374440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51562 (or 51558 counting only the distinct ones).

The product of its (nonzero) digits is 150528, while the sum is 37.

The spelling of 70044374440 in words is "seventy billion, forty-four million, three hundred seventy-four thousand, four hundred forty".

Divisors: 1 2 4 5 8 10 17 20 34 40 68 85 136 170 340 680 2083 4166 8332 10415 16664 20830 35411 41660 49451 70822 83320 98902 141644 177055 197804 247255 283288 354110 395608 494510 708220 840667 989020 1416440 1681334 1978040 3362668 4203335 6725336 8406670 16813340 33626680 103006433 206012866 412025732 515032165 824051464 1030064330 1751109361 2060128660 3502218722 4120257320 7004437444 8755546805 14008874888 17511093610 35022187220 70044374440