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89752431 = 3286110457
BaseRepresentation
bin1010101100110…
…00001101101111
320020212220012010
411112120031233
5140434034211
612523412303
72136611616
oct526301557
9206786163
1089752431
114673236a
1226084093
1315796362
14bcc487d
157d2d4a6
hex559836f

89752431 has 8 divisors (see below), whose sum is σ = 119723184. Its totient is φ = 59808320.

The previous prime is 89752391. The next prime is 89752433. The reversal of 89752431 is 13425798.

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 89752431 - 29 = 89751919 is a prime.

It is a super-2 number, since 2×897524312 = 16110997740819522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 89752431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89752433) 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, 3355 + ... + 13811.

It is an arithmetic number, because the mean of its divisors is an integer number (14965398).

Almost surely, 289752431 is an apocalyptic number.

89752431 is a deficient number, since it is larger than the sum of its proper divisors (29970753).

89752431 is a wasteful number, since it uses less digits than its factorization.

89752431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13321.

The product of its digits is 60480, while the sum is 39.

The square root of 89752431 is about 9473.7759631522. The cubic root of 89752431 is about 447.7291873465.

The spelling of 89752431 in words is "eighty-nine million, seven hundred fifty-two thousand, four hundred thirty-one".

Divisors: 1 3 2861 8583 10457 31371 29917477 89752431