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122097144 = 23313391337
BaseRepresentation
bin1110100011100…
…00110111111000
322111202011210110
413101300313320
5222224102034
620040544320
73011544231
oct721606770
9274664713
10122097144
1162a14434
1234a820a0
131c3ac640
1412304088
15aabbde9
hex7470df8

122097144 has 32 divisors (see below), whose sum is σ = 328723920. Its totient is φ = 37568256.

The previous prime is 122097119. The next prime is 122097149. The reversal of 122097144 is 441790221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122097149) 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, 195357 + ... + 195980.

Almost surely, 2122097144 is an apocalyptic number.

It is an amenable number.

122097144 is an abundant number, since it is smaller than the sum of its proper divisors (206626776).

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

122097144 is a wasteful number, since it uses less digits than its factorization.

122097144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391359 (or 391355 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 122097144 is about 11049.7576444011. The cubic root of 122097144 is about 496.0991715506.

The spelling of 122097144 in words is "one hundred twenty-two million, ninety-seven thousand, one hundred forty-four".

Divisors: 1 2 3 4 6 8 12 13 24 26 39 52 78 104 156 312 391337 782674 1174011 1565348 2348022 3130696 4696044 5087381 9392088 10174762 15262143 20349524 30524286 40699048 61048572 122097144