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125805061 = 197390703
BaseRepresentation
bin1110111111110…
…10001000000101
322202201120002201
413133322020011
5224201230221
620252234501
73055216414
oct737721005
9282646081
10125805061
1165017228
123616ba31
13200aa285
14129cb47b
15b0a0891
hex77fa205

125805061 has 8 divisors (see below), whose sum is σ = 134241920. Its totient is φ = 117549792.

The previous prime is 125805019. The next prime is 125805079. The reversal of 125805061 is 160508521.

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 125805061 - 215 = 125772293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125805011) 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, 43965 + ... + 46738.

It is an arithmetic number, because the mean of its divisors is an integer number (16780240).

Almost surely, 2125805061 is an apocalyptic number.

It is an amenable number.

125805061 is a deficient number, since it is larger than the sum of its proper divisors (8436859).

125805061 is an equidigital number, since it uses as much as digits as its factorization.

125805061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90795.

The product of its (nonzero) digits is 2400, while the sum is 28.

The square root of 125805061 is about 11216.2855259663. The cubic root of 125805061 is about 501.0711184387.

The spelling of 125805061 in words is "one hundred twenty-five million, eight hundred five thousand, sixty-one".

Divisors: 1 19 73 1387 90703 1723357 6621319 125805061