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125142623 = 4721112619
BaseRepresentation
bin1110111010110…
…00011001011111
322201110220101222
413131120121133
5224014030443
620230123555
73046460204
oct735303137
9281426358
10125142623
1164704561
1235ab05bb
131cc078b8
1412897cab
15aebe468
hex775865f

125142623 has 8 divisors (see below), whose sum is σ = 128421120. Its totient is φ = 121889880.

The previous prime is 125142601. The next prime is 125142653. The reversal of 125142623 is 326241521.

It is a happy number.

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 125142623 - 224 = 108365407 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 125142592 and 125142601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125142653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3608 + ... + 16226.

It is an arithmetic number, because the mean of its divisors is an integer number (16052640).

Almost surely, 2125142623 is an apocalyptic number.

125142623 is a deficient number, since it is larger than the sum of its proper divisors (3278497).

125142623 is a wasteful number, since it uses less digits than its factorization.

125142623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12877.

The product of its digits is 2880, while the sum is 26.

The square root of 125142623 is about 11186.7163636163. The cubic root of 125142623 is about 500.1900917211.

The spelling of 125142623 in words is "one hundred twenty-five million, one hundred forty-two thousand, six hundred twenty-three".

Divisors: 1 47 211 9917 12619 593093 2662609 125142623