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122613969 = 340871323
BaseRepresentation
bin1110100111011…
…11000011010001
322112201102202010
413103233003101
5222342121334
620100013133
73016126062
oct723570321
9275642663
10122613969
1163237765
12350911a9
131c53095a
14123da569
15ab700e9
hex74ef0d1

122613969 has 4 divisors (see below), whose sum is σ = 163485296. Its totient is φ = 81742644.

The previous prime is 122613961. The next prime is 122613971. The reversal of 122613969 is 969316221.

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: 969316221 = 3323105407.

It is not a de Polignac number, because 122613969 - 23 = 122613961 is a prime.

It is a super-2 number, since 2×1226139692 = 30068370787865922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122613961) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20435659 + ... + 20435664.

It is an arithmetic number, because the mean of its divisors is an integer number (40871324).

Almost surely, 2122613969 is an apocalyptic number.

It is an amenable number.

122613969 is a deficient number, since it is larger than the sum of its proper divisors (40871327).

122613969 is an equidigital number, since it uses as much as digits as its factorization.

122613969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40871326.

The product of its digits is 34992, while the sum is 39.

The square root of 122613969 is about 11073.1192082448. The cubic root of 122613969 is about 496.7981656123.

The spelling of 122613969 in words is "one hundred twenty-two million, six hundred thirteen thousand, nine hundred sixty-nine".

Divisors: 1 3 40871323 122613969