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125813073 = 3172466923
BaseRepresentation
bin1110111111111…
…00000101010001
322202201222002110
413133330011101
5224202004243
620252335533
73055251651
oct737740521
9282658073
10125813073
1165022251
12361745a9
13200b0b09
14129d0361
15b0a2e33
hex77fc151

125813073 has 8 divisors (see below), whose sum is σ = 177618528. Its totient is φ = 78941504.

The previous prime is 125813071. The next prime is 125813081. The reversal of 125813073 is 370318521.

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 125813073 - 21 = 125813071 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 125813073.

It is not an unprimeable number, because it can be changed into a prime (125813071) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1233411 + ... + 1233512.

It is an arithmetic number, because the mean of its divisors is an integer number (22202316).

Almost surely, 2125813073 is an apocalyptic number.

It is an amenable number.

125813073 is a deficient number, since it is larger than the sum of its proper divisors (51805455).

125813073 is a wasteful number, since it uses less digits than its factorization.

125813073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2466943.

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 125813073 is about 11216.6426795187. The cubic root of 125813073 is about 501.0817552566.

The spelling of 125813073 in words is "one hundred twenty-five million, eight hundred thirteen thousand, seventy-three".

Divisors: 1 3 17 51 2466923 7400769 41937691 125813073