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87434807227 = 380322991009
BaseRepresentation
bin101000101101110000…
…1010100011110111011
322100200111000102011121
41101123201110132323
52413031302312402
6104100023210111
76213500412265
oct1213341243673
9270614012147
1087434807227
113409873a869
1214b418a6937
138325548431
14433635ab35
15241b074837
hex145b8547bb

87434807227 has 4 divisors (see below), whose sum is σ = 87457802040. Its totient is φ = 87411812416.

The previous prime is 87434807137. The next prime is 87434807249. The reversal of 87434807227 is 72270843478.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 87434807227 - 227 = 87300589499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87434817227) 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, 11491702 + ... + 11499307.

It is an arithmetic number, because the mean of its divisors is an integer number (21864450510).

Almost surely, 287434807227 is an apocalyptic number.

87434807227 is a deficient number, since it is larger than the sum of its proper divisors (22994813).

87434807227 is a wasteful number, since it uses less digits than its factorization.

87434807227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22994812.

The product of its (nonzero) digits is 4214784, while the sum is 52.

The spelling of 87434807227 in words is "eighty-seven billion, four hundred thirty-four million, eight hundred seven thousand, two hundred twenty-seven".

Divisors: 1 3803 22991009 87434807227