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89107284 = 2237321649
BaseRepresentation
bin1010100111110…
…10101101010100
320012200010012210
411103322231110
5140302413114
612501513420
72131254000
oct523725524
9205603183
1089107284
1146331692
1225a12870
13155cb806
14bb97700
157c52259
hex54fab54

89107284 has 48 divisors (see below), whose sum is σ = 242480000. Its totient is φ = 25458048.

The previous prime is 89107279. The next prime is 89107289. The reversal of 89107284 is 48270198.

It is an interprime number because it is at equal distance from previous prime (89107279) and next prime (89107289).

It is a nialpdrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89107289) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6709 + ... + 14940.

Almost surely, 289107284 is an apocalyptic number.

89107284 is a gapful number since it is divisible by the number (84) formed by its first and last digit.

It is an amenable number.

89107284 is an abundant number, since it is smaller than the sum of its proper divisors (153372716).

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

89107284 is a wasteful number, since it uses less digits than its factorization.

89107284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21677 (or 21661 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 39.

The square root of 89107284 is about 9439.6654601739. The cubic root of 89107284 is about 446.6538366652.

The spelling of 89107284 in words is "eighty-nine million, one hundred seven thousand, two hundred eighty-four".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 49 84 98 147 196 294 343 588 686 1029 1372 2058 4116 21649 43298 64947 86596 129894 151543 259788 303086 454629 606172 909258 1060801 1818516 2121602 3182403 4243204 6364806 7425607 12729612 14851214 22276821 29702428 44553642 89107284