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125872073 = 831516531
BaseRepresentation
bin1111000000010…
…10011111001001
322202211222000122
413200022133021
5224210401243
620253513025
73055615655
oct740123711
9282758018
10125872073
1165062608
12361a2775
1320101922
1412a07a65
15b0b5668
hex780a7c9

125872073 has 4 divisors (see below), whose sum is σ = 127388688. Its totient is φ = 124355460.

The previous prime is 125872067. The next prime is 125872079. The reversal of 125872073 is 370278521.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (125872067) and next prime (125872079).

It is a cyclic number.

It is not a de Polignac number, because 125872073 - 212 = 125867977 is a prime.

It is a super-2 number, since 2×1258720732 = 31687557522634658, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125872079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 758183 + ... + 758348.

It is an arithmetic number, because the mean of its divisors is an integer number (31847172).

Almost surely, 2125872073 is an apocalyptic number.

It is an amenable number.

125872073 is a deficient number, since it is larger than the sum of its proper divisors (1516615).

125872073 is an equidigital number, since it uses as much as digits as its factorization.

125872073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1516614.

The product of its (nonzero) digits is 23520, while the sum is 35.

The square root of 125872073 is about 11219.2723917374. The cubic root of 125872073 is about 501.1600703918.

The spelling of 125872073 in words is "one hundred twenty-five million, eight hundred seventy-two thousand, seventy-three".

Divisors: 1 83 1516531 125872073