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123420716 = 22251122929
BaseRepresentation
bin1110101101101…
…00000000101100
322121020102101122
413112310000230
5223043430331
620125200112
73026026106
oct726640054
9277212348
10123420716
11637388a1
1235400038
131c753c13
141256a576
15ac7e17b
hex75b402c

123420716 has 12 divisors (see below), whose sum is σ = 216848520. Its totient is φ = 61464000.

The previous prime is 123420667. The next prime is 123420727. The reversal of 123420716 is 617024321.

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, 60461 + ... + 62468.

It is an arithmetic number, because the mean of its divisors is an integer number (18070710).

Almost surely, 2123420716 is an apocalyptic number.

It is an amenable number.

123420716 is a deficient number, since it is larger than the sum of its proper divisors (93427804).

123420716 is a wasteful number, since it uses less digits than its factorization.

123420716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123184 (or 123182 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 123420716 is about 11109.4876569534. The cubic root of 123420716 is about 497.8853571796.

The spelling of 123420716 in words is "one hundred twenty-three million, four hundred twenty thousand, seven hundred sixteen".

Divisors: 1 2 4 251 502 1004 122929 245858 491716 30855179 61710358 123420716