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70889904 = 243518233
BaseRepresentation
bin1000011100110…
…11000110110000
311221101120200000
410032123012300
5121121434104
611011230000
71520361051
oct416330660
9157346600
1070889904
11370196a8
121b8a8300
13118c08b7
1495b4728
156354639
hex439b1b0

70889904 has 60 divisors (see below), whose sum is σ = 205752456. Its totient is φ = 23628672.

The previous prime is 70889873. The next prime is 70889911. The reversal of 70889904 is 40998807.

It is a self number, because there is not a number n which added to its sum of digits gives 70889904.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5229 + ... + 13004.

Almost surely, 270889904 is an apocalyptic number.

It is an amenable number.

70889904 is an abundant number, since it is smaller than the sum of its proper divisors (134862552).

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

70889904 is a wasteful number, since it uses less digits than its factorization.

70889904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18256 (or 18238 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The square root of 70889904 is about 8419.6142429449. The cubic root of 70889904 is about 413.8676325411.

The spelling of 70889904 in words is "seventy million, eight hundred eighty-nine thousand, nine hundred four".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 36 48 54 72 81 108 144 162 216 243 324 432 486 648 972 1296 1944 3888 18233 36466 54699 72932 109398 145864 164097 218796 291728 328194 437592 492291 656388 875184 984582 1312776 1476873 1969164 2625552 2953746 3938328 4430619 5907492 7876656 8861238 11814984 17722476 23629968 35444952 70889904