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123272970 = 23516072557
BaseRepresentation
bin1110101100011…
…11111100001010
322120221220201120
413112033330022
5223024213340
620122100110
73024542262
oct726177412
9276856646
10123272970
1163647897
123534a636
131c7018b2
141252c7a2
15ac504d0
hex758ff0a

123272970 has 32 divisors (see below), whose sum is σ = 296155008. Its totient is φ = 32839488.

The previous prime is 123272951. The next prime is 123272971. The reversal of 123272970 is 79272321.

It is not an unprimeable number, because it can be changed into a prime (123272971) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46932 + ... + 49488.

It is an arithmetic number, because the mean of its divisors is an integer number (9254844).

Almost surely, 2123272970 is an apocalyptic number.

123272970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123272970 is an abundant number, since it is smaller than the sum of its proper divisors (172882038).

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

123272970 is a wasteful number, since it uses less digits than its factorization.

123272970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4174.

The product of its (nonzero) digits is 10584, while the sum is 33.

The square root of 123272970 is about 11102.8361241622. The cubic root of 123272970 is about 497.6866062599.

The spelling of 123272970 in words is "one hundred twenty-three million, two hundred seventy-two thousand, nine hundred seventy".

Divisors: 1 2 3 5 6 10 15 30 1607 2557 3214 4821 5114 7671 8035 9642 12785 15342 16070 24105 25570 38355 48210 76710 4109099 8218198 12327297 20545495 24654594 41090990 61636485 123272970