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89491612 = 2273196129
BaseRepresentation
bin1010101010110…
…00100010011100
320020101122102011
411111120202130
5140402212422
612514041004
72134444330
oct525304234
9206348364
1089491612
1146574411
1225b79164
1315704722
14bc577c0
157ccb077
hex555889c

89491612 has 12 divisors (see below), whose sum is σ = 178983280. Its totient is φ = 38353536.

The previous prime is 89491601. The next prime is 89491639. The reversal of 89491612 is 21619498.

89491612 is an admirable number.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a plaindrome in base 16.

It is a congruent number.

It is an unprimeable number.

It is an upside-down number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1598037 + ... + 1598092.

Almost surely, 289491612 is an apocalyptic number.

It is an amenable number.

89491612 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.

89491612 is a wasteful number, since it uses less digits than its factorization.

89491612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3196140 (or 3196138 counting only the distinct ones).

The product of its digits is 31104, while the sum is 40.

The square root of 89491612 is about 9460.0006342495. Note that the first 3 decimals coincide. The cubic root of 89491612 is about 447.2950688229.

The spelling of 89491612 in words is "eighty-nine million, four hundred ninety-one thousand, six hundred twelve".

Divisors: 1 2 4 7 14 28 3196129 6392258 12784516 22372903 44745806 89491612