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122522117 = 891376653
BaseRepresentation
bin1110100110110…
…00101000000101
322112112202202012
413103120220011
5222331201432
620054024005
73015264224
oct723305005
9275482665
10122522117
1163184753
1235048005
131c4cabc3
14123b4cbb
15ab52cb2
hex74d8a05

122522117 has 4 divisors (see below), whose sum is σ = 123898860. Its totient is φ = 121145376.

The previous prime is 122522087. The next prime is 122522119. The reversal of 122522117 is 711225221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 711225221 = 7101603603.

It can be written as a sum of positive squares in 2 ways, for example, as 31013761 + 91508356 = 5569^2 + 9566^2 .

It is not a de Polignac number, because 122522117 - 26 = 122522053 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122522092 and 122522101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122522119) 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, 688238 + ... + 688415.

It is an arithmetic number, because the mean of its divisors is an integer number (30974715).

Almost surely, 2122522117 is an apocalyptic number.

It is an amenable number.

122522117 is a deficient number, since it is larger than the sum of its proper divisors (1376743).

122522117 is an equidigital number, since it uses as much as digits as its factorization.

122522117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1376742.

The product of its digits is 560, while the sum is 23.

The square root of 122522117 is about 11068.9709097097. The cubic root of 122522117 is about 496.6740815873.

Adding to 122522117 its reverse (711225221), we get a palindrome (833747338).

The spelling of 122522117 in words is "one hundred twenty-two million, five hundred twenty-two thousand, one hundred seventeen".

Divisors: 1 89 1376653 122522117