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123052141 = 1131088957
BaseRepresentation
bin1110101010110…
…10000001101101
322120112200210201
413111122001231
5223000132031
620113233501
73022632412
oct725320155
9276480721
10123052141
1163506993
1235262891
131c655224
14124b2109
15ac09d61
hex755a06d

123052141 has 4 divisors (see below), whose sum is σ = 124141212. Its totient is φ = 121963072.

The previous prime is 123052117. The next prime is 123052147. The reversal of 123052141 is 141250321.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 20738916 + 102313225 = 4554^2 + 10115^2 .

It is a cyclic number.

It is not a de Polignac number, because 123052141 - 211 = 123050093 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123052147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 544366 + ... + 544591.

It is an arithmetic number, because the mean of its divisors is an integer number (31035303).

Almost surely, 2123052141 is an apocalyptic number.

It is an amenable number.

123052141 is a deficient number, since it is larger than the sum of its proper divisors (1089071).

123052141 is a wasteful number, since it uses less digits than its factorization.

123052141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1089070.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 123052141 is about 11092.8869551619. The cubic root of 123052141 is about 497.3892463238.

The spelling of 123052141 in words is "one hundred twenty-three million, fifty-two thousand, one hundred forty-one".

Divisors: 1 113 1088957 123052141