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6925973157 = 321947861761
BaseRepresentation
bin1100111001101000…
…11111011010100101
3122212200102220001100
412130310133122211
5103141022120112
63103131350313
7333426541365
oct63464373245
918780386040
106925973157
112a34593164
1214135b2399
13864b8758c
14499baa9a5
152a80952dc
hex19cd1f6a5

6925973157 has 24 divisors (see below), whose sum is σ = 10754789760. Its totient is φ = 4281223680.

The previous prime is 6925973129. The next prime is 6925973189. The reversal of 6925973157 is 7513795296.

It is not a de Polignac number, because 6925973157 - 27 = 6925973029 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6925973657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 422844 + ... + 438917.

It is an arithmetic number, because the mean of its divisors is an integer number (448116240).

Almost surely, 26925973157 is an apocalyptic number.

It is an amenable number.

6925973157 is a deficient number, since it is larger than the sum of its proper divisors (3828816603).

6925973157 is a wasteful number, since it uses less digits than its factorization.

6925973157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 861833 (or 861830 counting only the distinct ones).

The product of its digits is 3572100, while the sum is 54.

The square root of 6925973157 is about 83222.4318137844. The cubic root of 6925973157 is about 1906.1640212738.

The spelling of 6925973157 in words is "six billion, nine hundred twenty-five million, nine hundred seventy-three thousand, one hundred fifty-seven".

Divisors: 1 3 9 19 47 57 141 171 423 893 2679 8037 861761 2585283 7755849 16373459 40502767 49120377 121508301 147361131 364524903 769552573 2308657719 6925973157