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122505331 = 1319495973
BaseRepresentation
bin1110100110101…
…00100001110011
322112111220201111
413103110201303
5222330132311
620053414151
73015164254
oct723244163
9275456644
10122505331
1163173083
123503a357
131c4c3380
14123acb2b
15ab4cd21
hex74d4873

122505331 has 8 divisors (see below), whose sum is σ = 138872720. Its totient is φ = 107129952.

The previous prime is 122505329. The next prime is 122505371. The reversal of 122505331 is 133505221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 122505331 - 21 = 122505329 is a prime.

It is a super-2 number, since 2×1225053312 = 30015112246839122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122505311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 247740 + ... + 248233.

It is an arithmetic number, because the mean of its divisors is an integer number (17359090).

Almost surely, 2122505331 is an apocalyptic number.

122505331 is a deficient number, since it is larger than the sum of its proper divisors (16367389).

122505331 is a wasteful number, since it uses less digits than its factorization.

122505331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 496005.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 122505331 is about 11068.2126380008. The cubic root of 122505331 is about 496.6513984666.

The spelling of 122505331 in words is "one hundred twenty-two million, five hundred five thousand, three hundred thirty-one".

Divisors: 1 13 19 247 495973 6447649 9423487 122505331