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122253013 = 331336901
BaseRepresentation
bin1110100100101…
…10111011010101
322112001002121101
413102112323111
5222244044023
620044150101
73013063531
oct722267325
9275032541
10122253013
1163010553
1234b38331
131c43557c
1412344bc1
15aaed1ad
hex7496ed5

122253013 has 4 divisors (see below), whose sum is σ = 122293228. Its totient is φ = 122212800.

The previous prime is 122253007. The next prime is 122253017. The reversal of 122253013 is 310352221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 310352221 = 1718256013.

It can be written as a sum of positive squares in 2 ways, for example, as 52664049 + 69588964 = 7257^2 + 8342^2 .

It is a cyclic number.

It is not a de Polignac number, because 122253013 - 225 = 88698581 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122253017) 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, 15138 + ... + 21763.

It is an arithmetic number, because the mean of its divisors is an integer number (30573307).

Almost surely, 2122253013 is an apocalyptic number.

It is an amenable number.

122253013 is a deficient number, since it is larger than the sum of its proper divisors (40215).

122253013 is an equidigital number, since it uses as much as digits as its factorization.

122253013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40214.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 122253013 is about 11056.8084454783. The cubic root of 122253013 is about 496.3101882258.

The spelling of 122253013 in words is "one hundred twenty-two million, two hundred fifty-three thousand, thirteen".

Divisors: 1 3313 36901 122253013