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122622252 = 22310218521
BaseRepresentation
bin1110100111100…
…01000100101100
322112201212002220
413103301010230
5222342403002
620100115340
73016162164
oct723610454
9275655086
10122622252
1163242a05
1235095b50
131c53465c
14123dd5a4
15ab727bc
hex74f112c

122622252 has 12 divisors (see below), whose sum is σ = 286118616. Its totient is φ = 40874080.

The previous prime is 122622239. The next prime is 122622263. The reversal of 122622252 is 252226221.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

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, 5109249 + ... + 5109272.

It is an arithmetic number, because the mean of its divisors is an integer number (23843218).

Almost surely, 2122622252 is an apocalyptic number.

122622252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

122622252 is an abundant number, since it is smaller than the sum of its proper divisors (163496364).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122622252 is a wasteful number, since it uses less digits than its factorization.

122622252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10218528 (or 10218526 counting only the distinct ones).

The product of its digits is 1920, while the sum is 24.

The square root of 122622252 is about 11073.4932157834. The cubic root of 122622252 is about 496.8093521750.

Adding to 122622252 its reverse (252226221), we get a palindrome (374848473).

The spelling of 122622252 in words is "one hundred twenty-two million, six hundred twenty-two thousand, two hundred fifty-two".

Divisors: 1 2 3 4 6 12 10218521 20437042 30655563 40874084 61311126 122622252