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122427372 = 22310202281
BaseRepresentation
bin1110100110000…
…01011111101100
322112100221210010
413103001133230
5222320133442
620052013220
73014421054
oct723013754
9275327703
10122427372
116311a551
1235001210
131c496a42
141238c564
15ab34b9c
hex74c17ec

122427372 has 12 divisors (see below), whose sum is σ = 285663896. Its totient is φ = 40809120.

The previous prime is 122427337. The next prime is 122427377. The reversal of 122427372 is 273724221.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×1224273722 = 29976922829652768, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (122427377) 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, 5101129 + ... + 5101152.

Almost surely, 2122427372 is an apocalyptic number.

122427372 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

122427372 is an abundant number, since it is smaller than the sum of its proper divisors (163236524).

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

122427372 is a wasteful number, since it uses less digits than its factorization.

122427372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10202288 (or 10202286 counting only the distinct ones).

The product of its digits is 9408, while the sum is 30.

The square root of 122427372 is about 11064.6903255356. The cubic root of 122427372 is about 496.5460243792.

The spelling of 122427372 in words is "one hundred twenty-two million, four hundred twenty-seven thousand, three hundred seventy-two".

Divisors: 1 2 3 4 6 12 10202281 20404562 30606843 40809124 61213686 122427372