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70868125 = 54149761
BaseRepresentation
bin1000011100101…
…01110010011101
311221100110210101
410032111302131
5121120240000
611010541101
71520240416
oct416256235
9157313711
1070868125
11370042a9
121b897791
13118b3a03
1495aa80d
15634ce6a
hex4395c9d

70868125 has 20 divisors (see below), whose sum is σ = 89268300. Its totient is φ = 56240000.

The previous prime is 70868123. The next prime is 70868137. The reversal of 70868125 is 52186807.

It can be written as a sum of positive squares in 10 ways, for example, as 70375321 + 492804 = 8389^2 + 702^2 .

It is not a de Polignac number, because 70868125 - 21 = 70868123 is a prime.

It is a super-2 number, since 2×708681252 = 10044582282031250, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70868123) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 92745 + ... + 93505.

It is an arithmetic number, because the mean of its divisors is an integer number (4463415).

Almost surely, 270868125 is an apocalyptic number.

It is an amenable number.

70868125 is a deficient number, since it is larger than the sum of its proper divisors (18400175).

70868125 is an equidigital number, since it uses as much as digits as its factorization.

70868125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 930 (or 915 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 37.

The square root of 70868125 is about 8418.3207945528. The cubic root of 70868125 is about 413.8252449989.

The spelling of 70868125 in words is "seventy million, eight hundred sixty-eight thousand, one hundred twenty-five".

Divisors: 1 5 25 125 149 625 745 761 3725 3805 18625 19025 93125 95125 113389 475625 566945 2834725 14173625 70868125