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87070938 = 2314511823
BaseRepresentation
bin1010011000010…
…01100011011010
320001211122212120
411030021203122
5134242232223
612350122110
72105043063
oct514114332
9201748776
1087070938
1145170759
12251b0336
1315067986
14b7c756a
15799dbe3
hex53098da

87070938 has 8 divisors (see below), whose sum is σ = 174141888. Its totient is φ = 29023644.

The previous prime is 87070937. The next prime is 87070943. The reversal of 87070938 is 83907078.

It is a sphenic number, since it is the product of 3 distinct primes.

87070938 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 87070938.

It is not an unprimeable number, because it can be changed into a prime (87070937) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7255906 + ... + 7255917.

It is an arithmetic number, because the mean of its divisors is an integer number (21767736).

Almost surely, 287070938 is an apocalyptic number.

87070938 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

87070938 is a wasteful number, since it uses less digits than its factorization.

87070938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14511828.

The product of its (nonzero) digits is 84672, while the sum is 42.

The square root of 87070938 is about 9331.1809541987. The cubic root of 87070938 is about 443.2251622698.

The spelling of 87070938 in words is "eighty-seven million, seventy thousand, nine hundred thirty-eight".

Divisors: 1 2 3 6 14511823 29023646 43535469 87070938