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122120497 = 711978731
BaseRepresentation
bin1110100011101…
…10100100110001
322111210100211101
413101312210301
5222230323442
620041244401
73012002302
oct721664461
9274710741
10122120497
1162a2aa34
1234a93701
131c3ba165
141230c7a9
15aac3cb7
hex7476931

122120497 has 8 divisors (see below), whose sum is σ = 124483392. Its totient is φ = 119775600.

The previous prime is 122120477. The next prime is 122120521. The reversal of 122120497 is 794021221.

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 122120497 - 215 = 122087729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122120477) 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, 9622 + ... + 18352.

It is an arithmetic number, because the mean of its divisors is an integer number (15560424).

Almost surely, 2122120497 is an apocalyptic number.

It is an amenable number.

122120497 is a deficient number, since it is larger than the sum of its proper divisors (2362895).

122120497 is an equidigital number, since it uses as much as digits as its factorization.

122120497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8999.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 122120497 is about 11050.8143138866. The cubic root of 122120497 is about 496.1307984585.

The spelling of 122120497 in words is "one hundred twenty-two million, one hundred twenty thousand, four hundred ninety-seven".

Divisors: 1 71 197 8731 13987 619901 1720007 122120497