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89703931 = 295358363
BaseRepresentation
bin1010101100011…
…00010111111011
320020210102122211
411112030113323
5140431011211
612522355551
72136320332
oct526142773
9206712584
1089703931
11466a9989
122605bbb7
131577a265
14bcb0d19
157d1de21
hex558c5fb

89703931 has 8 divisors (see below), whose sum is σ = 94549680. Its totient is φ = 84975072.

The previous prime is 89703923. The next prime is 89703937. The reversal of 89703931 is 13930798.

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

It is a cyclic number.

It is not a de Polignac number, because 89703931 - 23 = 89703923 is a prime.

It is a super-2 number, since 2×897039312 = 16093590473705522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89703937) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27645 + ... + 30718.

It is an arithmetic number, because the mean of its divisors is an integer number (11818710).

Almost surely, 289703931 is an apocalyptic number.

89703931 is a deficient number, since it is larger than the sum of its proper divisors (4845749).

89703931 is a wasteful number, since it uses less digits than its factorization.

89703931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58445.

The product of its (nonzero) digits is 40824, while the sum is 40.

The square root of 89703931 is about 9471.2159198278. The cubic root of 89703931 is about 447.6485255456.

The spelling of 89703931 in words is "eighty-nine million, seven hundred three thousand, nine hundred thirty-one".

Divisors: 1 29 53 1537 58363 1692527 3093239 89703931