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89200431 = 3253187003
BaseRepresentation
bin1010101000100…
…01011100101111
320012211211222200
411110101130233
5140313403211
612503512543
72132122365
oct524213457
9205754880
1089200431
1146395671
1225a58753
1315632028
14bbbd635
157c6eb56
hex551172f

89200431 has 12 divisors (see below), whose sum is σ = 131276808. Its totient is φ = 58344624.

The previous prime is 89200429. The next prime is 89200457. The reversal of 89200431 is 13400298.

It is not a de Polignac number, because 89200431 - 21 = 89200429 is a prime.

It is a super-2 number, since 2×892004312 = 15913433781171522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 89200395 and 89200404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89202431) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 93025 + ... + 93978.

It is an arithmetic number, because the mean of its divisors is an integer number (10939734).

Almost surely, 289200431 is an apocalyptic number.

89200431 is a deficient number, since it is larger than the sum of its proper divisors (42076377).

89200431 is a wasteful number, since it uses less digits than its factorization.

89200431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187062 (or 187059 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 89200431 is about 9444.5979797978. The cubic root of 89200431 is about 446.8094168251.

The spelling of 89200431 in words is "eighty-nine million, two hundred thousand, four hundred thirty-one".

Divisors: 1 3 9 53 159 477 187003 561009 1683027 9911159 29733477 89200431