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122973388 = 22107287321
BaseRepresentation
bin1110101010001…
…10110011001100
322120101200202221
413111012303030
5222440122023
620111425124
73022153666
oct725066314
9276350687
10122973388
11634627aa
12352251a4
131c628425
1412491536
15abe185d
hex7546ccc

122973388 has 12 divisors (see below), whose sum is σ = 217215432. Its totient is φ = 60911840.

The previous prime is 122973371. The next prime is 122973401. The reversal of 122973388 is 883379221.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 143233 + ... + 144088.

It is an arithmetic number, because the mean of its divisors is an integer number (18101286).

Almost surely, 2122973388 is an apocalyptic number.

It is an amenable number.

122973388 is a deficient number, since it is larger than the sum of its proper divisors (94242044).

122973388 is a wasteful number, since it uses less digits than its factorization.

122973388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287432 (or 287430 counting only the distinct ones).

The product of its digits is 145152, while the sum is 43.

The square root of 122973388 is about 11089.3366798921. The cubic root of 122973388 is about 497.2831144722.

The spelling of 122973388 in words is "one hundred twenty-two million, nine hundred seventy-three thousand, three hundred eighty-eight".

Divisors: 1 2 4 107 214 428 287321 574642 1149284 30743347 61486694 122973388