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87871122 = 2337322291
BaseRepresentation
bin1010011110011…
…00111010010010
320010100022112000
411033030322102
5134443333442
612415214430
72114615013
oct517147222
9203308460
1087871122
1145667969
1225517416
1315287c61
14b95500a
hex53cce92

87871122 has 32 divisors (see below), whose sum is σ = 197952960. Its totient is φ = 28887840.

The previous prime is 87871117. The next prime is 87871123. The reversal of 87871122 is 22117878.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (87871123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7204 + ... + 15087.

It is an arithmetic number, because the mean of its divisors is an integer number (6186030).

Almost surely, 287871122 is an apocalyptic number.

87871122 is an abundant number, since it is smaller than the sum of its proper divisors (110081838).

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

87871122 is a wasteful number, since it uses less digits than its factorization.

87871122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22375 (or 22369 counting only the distinct ones).

The product of its digits is 12544, while the sum is 36.

The square root of 87871122 is about 9373.9597822905. The cubic root of 87871122 is about 444.5787740672.

The spelling of 87871122 in words is "eighty-seven million, eight hundred seventy-one thousand, one hundred twenty-two".