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122572097 = 196451163
BaseRepresentation
bin1110100111001…
…00110101000001
322112122022022022
413103210311001
5222334301342
620055051225
73015563024
oct723446501
9275568268
10122572097
116320925a
1235070b15
131c51788b
14123c91bb
15ab629d2
hex74e4d41

122572097 has 4 divisors (see below), whose sum is σ = 129023280. Its totient is φ = 116120916.

The previous prime is 122572039. The next prime is 122572103. The reversal of 122572097 is 790275221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 790275221 = 5827135623.

It is a cyclic number.

It is not a de Polignac number, because 122572097 - 26 = 122572033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122572297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3225563 + ... + 3225600.

It is an arithmetic number, because the mean of its divisors is an integer number (32255820).

Almost surely, 2122572097 is an apocalyptic number.

It is an amenable number.

122572097 is a deficient number, since it is larger than the sum of its proper divisors (6451183).

122572097 is an equidigital number, since it uses as much as digits as its factorization.

122572097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6451182.

The product of its (nonzero) digits is 17640, while the sum is 35.

The square root of 122572097 is about 11071.2283419682. The cubic root of 122572097 is about 496.7416078880.

The spelling of 122572097 in words is "one hundred twenty-two million, five hundred seventy-two thousand, ninety-seven".

Divisors: 1 19 6451163 122572097