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87938922 = 2330747741
BaseRepresentation
bin1010011110111…
…01011101101010
320010110202112010
411033131131222
5140003021142
612420500350
72115316461
oct517353552
9203422463
1087938922
11457038a5
122554a6b6
13152aca86
14b9719d8
157ac0e9c
hex53dd76a

87938922 has 16 divisors (see below), whose sum is σ = 176454432. Its totient is φ = 29216880.

The previous prime is 87938887. The next prime is 87938923. The reversal of 87938922 is 22983978.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (87938923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22029 + ... + 25712.

It is an arithmetic number, because the mean of its divisors is an integer number (11028402).

Almost surely, 287938922 is an apocalyptic number.

87938922 is an abundant number, since it is smaller than the sum of its proper divisors (88515510).

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

87938922 is a wasteful number, since it uses less digits than its factorization.

87938922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48053.

The product of its digits is 435456, while the sum is 48.

The square root of 87938922 is about 9377.5754862331. The cubic root of 87938922 is about 444.6930880422.

The spelling of 87938922 in words is "eighty-seven million, nine hundred thirty-eight thousand, nine hundred twenty-two".

Divisors: 1 2 3 6 307 614 921 1842 47741 95482 143223 286446 14656487 29312974 43969461 87938922