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87814007 = 597120963
BaseRepresentation
bin1010011101111…
…10111101110111
320010020102011122
411032332331313
5134440022012
612414054155
72114256341
oct516767567
9203212148
1087814007
1145628a66
12254aa35b
1315267c68
14b93c291
157a98e72
hex53bef77

87814007 has 8 divisors (see below), whose sum is σ = 90564480. Its totient is φ = 85105720.

The previous prime is 87813967. The next prime is 87814021. The reversal of 87814007 is 70041878.

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

It is a cyclic number.

It is not a de Polignac number, because 87814007 - 210 = 87812983 is a prime.

It is a super-2 number, since 2×878140072 = 15422599650792098, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87814037) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6293 + ... + 14670.

It is an arithmetic number, because the mean of its divisors is an integer number (11320560).

Almost surely, 287814007 is an apocalyptic number.

87814007 is a deficient number, since it is larger than the sum of its proper divisors (2750473).

87814007 is a wasteful number, since it uses less digits than its factorization.

87814007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21093.

The product of its (nonzero) digits is 12544, while the sum is 35.

The square root of 87814007 is about 9370.9128157293. The cubic root of 87814007 is about 444.4824298622.

The spelling of 87814007 in words is "eighty-seven million, eight hundred fourteen thousand, seven".

Divisors: 1 59 71 4189 20963 1236817 1488373 87814007