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122160556 = 2274362877
BaseRepresentation
bin1110100100000…
…00010110101100
322111212101210001
413102000112230
5222233114211
620042154044
73012230140
oct722002654
9274771701
10122160556
1162a58041
1234ab2924
131c40246b
141231d220
15aad0ac1
hex74805ac

122160556 has 12 divisors (see below), whose sum is σ = 244321168. Its totient is φ = 52354512.

The previous prime is 122160547. The next prime is 122160583. The reversal of 122160556 is 655061221.

122160556 is an admirable number.

It is a Harshad number since it is a multiple of its sum of digits (28), and also a Moran number because the ratio is a prime number: 4362877 = 122160556 / (1 + 2 + 2 + 1 + 6 + 0 + 5 + 5 + 6).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2181411 + ... + 2181466.

Almost surely, 2122160556 is an apocalyptic number.

It is an amenable number.

122160556 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.

122160556 is a wasteful number, since it uses less digits than its factorization.

122160556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4362888 (or 4362886 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 122160556 is about 11052.6266561393. The cubic root of 122160556 is about 496.1850408705.

The spelling of 122160556 in words is "one hundred twenty-two million, one hundred sixty thousand, five hundred fifty-six".

Divisors: 1 2 4 7 14 28 4362877 8725754 17451508 30540139 61080278 122160556