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122557601 = 316164811
BaseRepresentation
bin1110100111000…
…01010010100001
322112121120102102
413103201102201
5222333320401
620054500145
73015502535
oct723412241
9275546372
10122557601
11631a9381
1235064655
131c5110ba
14123c3bc5
15ab5d56b
hex74e14a1

122557601 has 8 divisors (see below), whose sum is σ = 128587008. Its totient is φ = 116658000.

The previous prime is 122557577. The next prime is 122557613. The reversal of 122557601 is 106755221.

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 122557601 - 226 = 55448737 is a prime.

It is not an unprimeable number, because it can be changed into a prime (122557621) 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, 30515 + ... + 34296.

It is an arithmetic number, because the mean of its divisors is an integer number (16073376).

Almost surely, 2122557601 is an apocalyptic number.

It is an amenable number.

122557601 is a deficient number, since it is larger than the sum of its proper divisors (6029407).

122557601 is an equidigital number, since it uses as much as digits as its factorization.

122557601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64903.

The product of its (nonzero) digits is 4200, while the sum is 29.

The square root of 122557601 is about 11070.5736527065. The cubic root of 122557601 is about 496.7220247191.

The spelling of 122557601 in words is "one hundred twenty-two million, five hundred fifty-seven thousand, six hundred one".

Divisors: 1 31 61 1891 64811 2009141 3953471 122557601