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87130662 = 2314521777
BaseRepresentation
bin1010011000110…
…00001000100110
320001221200210120
411030120020212
5134301140122
612351302410
72105412153
oct514301046
9201850716
1087130662
1145201613
122521aa06
1315088c08
14b80122a
1579b175c
hex5318226

87130662 has 8 divisors (see below), whose sum is σ = 174261336. Its totient is φ = 29043552.

The previous prime is 87130657. The next prime is 87130663. The reversal of 87130662 is 26603178.

It is a sphenic number, since it is the product of 3 distinct primes.

87130662 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87130663) 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, 7260883 + ... + 7260894.

It is an arithmetic number, because the mean of its divisors is an integer number (21782667).

Almost surely, 287130662 is an apocalyptic number.

87130662 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.

87130662 is a wasteful number, since it uses less digits than its factorization.

87130662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14521782.

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 87130662 is about 9334.3806436207. The cubic root of 87130662 is about 443.3264786222.

The spelling of 87130662 in words is "eighty-seven million, one hundred thirty thousand, six hundred sixty-two".

Divisors: 1 2 3 6 14521777 29043554 43565331 87130662