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87233742 = 2325982141
BaseRepresentation
bin1010011001100…
…01010011001110
320002010221012100
411030301103032
5134312434432
612353415530
72106321531
oct514612316
9202127170
1087233742
1145272002
122526a5a6
13150c3acb
14b82aa18
1579d207c
hex53314ce

87233742 has 24 divisors (see below), whose sum is σ = 192212280. Its totient is φ = 28584720.

The previous prime is 87233737. The next prime is 87233771. The reversal of 87233742 is 24733278.

It is a junction number, because it is equal to n+sod(n) for n = 87233697 and 87233706.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40009 + ... + 42132.

It is an arithmetic number, because the mean of its divisors is an integer number (8008845).

Almost surely, 287233742 is an apocalyptic number.

87233742 is an abundant number, since it is smaller than the sum of its proper divisors (104978538).

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

87233742 is a wasteful number, since it uses less digits than its factorization.

87233742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82208 (or 82205 counting only the distinct ones).

The product of its digits is 56448, while the sum is 36.

The square root of 87233742 is about 9339.9005348023. The cubic root of 87233742 is about 443.5012356409.

The spelling of 87233742 in words is "eighty-seven million, two hundred thirty-three thousand, seven hundred forty-two".

Divisors: 1 2 3 6 9 18 59 118 177 354 531 1062 82141 164282 246423 492846 739269 1478538 4846319 9692638 14538957 29077914 43616871 87233742