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70887152 = 2474631367
BaseRepresentation
bin1000011100110…
…10011011110000
311221101102220002
410032122123300
5121121342102
611011205132
71520350040
oct416323360
9157342802
1070887152
1137017626
121b8a67a8
13118bc57b
1495b3720
156353902
hex439a6f0

70887152 has 40 divisors (see below), whose sum is σ = 157418496. Its totient is φ = 30292416.

The previous prime is 70887137. The next prime is 70887191. The reversal of 70887152 is 25178807.

It is a super-2 number, since 2×708871522 = 10049976637342208, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51173 + ... + 52539.

Almost surely, 270887152 is an apocalyptic number.

It is an amenable number.

70887152 is an abundant number, since it is smaller than the sum of its proper divisors (86531344).

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

70887152 is a wasteful number, since it uses less digits than its factorization.

70887152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1845 (or 1839 counting only the distinct ones).

The product of its (nonzero) digits is 31360, while the sum is 38.

The square root of 70887152 is about 8419.4508134438. The cubic root of 70887152 is about 413.8622769197.

The spelling of 70887152 in words is "seventy million, eight hundred eighty-seven thousand, one hundred fifty-two".

Divisors: 1 2 4 7 8 14 16 28 56 112 463 926 1367 1852 2734 3241 3704 5468 6482 7408 9569 10936 12964 19138 21872 25928 38276 51856 76552 153104 632921 1265842 2531684 4430447 5063368 8860894 10126736 17721788 35443576 70887152