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87343972 = 2223949391
BaseRepresentation
bin1010011010011…
…00001101100100
320002100112101221
411031030031210
5134330001342
612400030124
72110261102
oct515141544
9202315357
1087343972
1145337901
1225302344
1315132031
14b858c72
157a04a67
hex534c364

87343972 has 12 divisors (see below), whose sum is σ = 159497856. Its totient is φ = 41773160.

The previous prime is 87343951. The next prime is 87343973. The reversal of 87343972 is 27934378.

It is not an unprimeable number, because it can be changed into a prime (87343973) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 474604 + ... + 474787.

It is an arithmetic number, because the mean of its divisors is an integer number (13291488).

Almost surely, 287343972 is an apocalyptic number.

It is an amenable number.

87343972 is a deficient number, since it is larger than the sum of its proper divisors (72153884).

87343972 is a wasteful number, since it uses less digits than its factorization.

87343972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 949418 (or 949416 counting only the distinct ones).

The product of its digits is 254016, while the sum is 43.

The square root of 87343972 is about 9345.7996982602. The cubic root of 87343972 is about 443.6879621796.

The spelling of 87343972 in words is "eighty-seven million, three hundred forty-three thousand, nine hundred seventy-two".

Divisors: 1 2 4 23 46 92 949391 1898782 3797564 21835993 43671986 87343972