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123250055 = 5191297369
BaseRepresentation
bin1110101100010…
…10010110000111
322120220202021212
413112022112013
5223023000210
620121402035
73024415415
oct726122607
9276822255
10123250055
1163631655
123533931b
131c6c4336
14125242b5
15ac48805
hex758a587

123250055 has 8 divisors (see below), whose sum is σ = 155684400. Its totient is φ = 93410496.

The previous prime is 123250037. The next prime is 123250063. The reversal of 123250055 is 550052321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 123250055 - 26 = 123249991 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 123250055.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 648590 + ... + 648779.

It is an arithmetic number, because the mean of its divisors is an integer number (19460550).

Almost surely, 2123250055 is an apocalyptic number.

123250055 is a deficient number, since it is larger than the sum of its proper divisors (32434345).

123250055 is a wasteful number, since it uses less digits than its factorization.

123250055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1297393.

The product of its (nonzero) digits is 1500, while the sum is 23.

The square root of 123250055 is about 11101.8041326624. The cubic root of 123250055 is about 497.6557663136.

The spelling of 123250055 in words is "one hundred twenty-three million, two hundred fifty thousand, fifty-five".

Divisors: 1 5 19 95 1297369 6486845 24650011 123250055