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70387125 = 353187699
BaseRepresentation
bin1000011001000…
…00010110110101
311220110000222120
410030200112311
5121004342000
610552350153
71513165164
oct414402665
9156400876
1070387125
1136805986
121b6a5359
1311775ab3
1494c33db
1562a56a0
hex43205b5

70387125 has 16 divisors (see below), whose sum is σ = 117124800. Its totient is φ = 37539600.

The previous prime is 70387117. The next prime is 70387133. The reversal of 70387125 is 52178307.

It is an interprime number because it is at equal distance from previous prime (70387117) and next prime (70387133).

It is not a de Polignac number, because 70387125 - 23 = 70387117 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 93475 + ... + 94224.

It is an arithmetic number, because the mean of its divisors is an integer number (7320300).

Almost surely, 270387125 is an apocalyptic number.

70387125 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

70387125 is a deficient number, since it is larger than the sum of its proper divisors (46737675).

70387125 is a wasteful number, since it uses less digits than its factorization.

70387125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187717 (or 187707 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 33.

The square root of 70387125 is about 8389.7035108519. The cubic root of 70387125 is about 412.8868730447.

The spelling of 70387125 in words is "seventy million, three hundred eighty-seven thousand, one hundred twenty-five".

Divisors: 1 3 5 15 25 75 125 375 187699 563097 938495 2815485 4692475 14077425 23462375 70387125