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122660756 = 2230665189
BaseRepresentation
bin1110100111110…
…10011110010100
322112210210220222
413103322132110
5222400121011
620101013512
73016412351
oct723723624
9275723828
10122660756
1163269929
12350b4298
131c54903a
141240d628
15ab7dddb
hex74fa794

122660756 has 6 divisors (see below), whose sum is σ = 214656330. Its totient is φ = 61330376.

The previous prime is 122660737. The next prime is 122660761. The reversal of 122660756 is 657066221.

It can be written as a sum of positive squares in only one way, i.e., 106419856 + 16240900 = 10316^2 + 4030^2 .

It is a super-2 number, since 2×1226607562 = 30091322124983072, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15332591 + ... + 15332598.

It is an arithmetic number, because the mean of its divisors is an integer number (35776055).

Almost surely, 2122660756 is an apocalyptic number.

It is an amenable number.

122660756 is a deficient number, since it is larger than the sum of its proper divisors (91995574).

122660756 is a wasteful number, since it uses less digits than its factorization.

122660756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30665193 (or 30665191 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 122660756 is about 11075.2316454330. The cubic root of 122660756 is about 496.8613469397.

The spelling of 122660756 in words is "one hundred twenty-two million, six hundred sixty thousand, seven hundred fifty-six".

Divisors: 1 2 4 30665189 61330378 122660756