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122020444 = 22713335221
BaseRepresentation
bin1110100010111…
…10001001011100
322111121021120201
413101132021130
5222214123234
620035153244
73011104510
oct721361134
9274537521
10122020444
1162971847
1234a45824
131c383760
14122c4140
15aaa4314
hex745e25c

122020444 has 24 divisors (see below), whose sum is σ = 262814048. Its totient is φ = 48271680.

The previous prime is 122020427. The next prime is 122020447. The reversal of 122020444 is 444020221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122020447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 167247 + ... + 167974.

Almost surely, 2122020444 is an apocalyptic number.

122020444 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

122020444 is an abundant number, since it is smaller than the sum of its proper divisors (140793604).

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

122020444 is a wasteful number, since it uses less digits than its factorization.

122020444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335245 (or 335243 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 19.

The square root of 122020444 is about 11046.2864348160. The cubic root of 122020444 is about 495.9952685553.

Adding to 122020444 its reverse (444020221), we get a palindrome (566040665).

The spelling of 122020444 in words is "one hundred twenty-two million, twenty thousand, four hundred forty-four".

Divisors: 1 2 4 7 13 14 26 28 52 91 182 364 335221 670442 1340884 2346547 4357873 4693094 8715746 9386188 17431492 30505111 61010222 122020444