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3807641257 = 71298341897
BaseRepresentation
bin1110001011110011…
…1111111010101001
3100211100202012212021
43202330333322221
530244224010012
61425454544441
7163233262630
oct34274777251
910740665767
103807641257
111684350262
128a3208121
13488b11484
142819a0517
1517442a007
hexe2f3fea9

3807641257 has 8 divisors (see below), whose sum is σ = 4352029056. Its totient is φ = 3263363232.

The previous prime is 3807641239. The next prime is 3807641267. The reversal of 3807641257 is 7521467083.

3807641257 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 3807641257 - 223 = 3799252649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3807641267) 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, 69933 + ... + 111829.

It is an arithmetic number, because the mean of its divisors is an integer number (544003632).

Almost surely, 23807641257 is an apocalyptic number.

It is an amenable number.

3807641257 is a deficient number, since it is larger than the sum of its proper divisors (544387799).

3807641257 is a wasteful number, since it uses less digits than its factorization.

3807641257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54887.

The product of its (nonzero) digits is 282240, while the sum is 43.

The square root of 3807641257 is about 61706.0876818487. The cubic root of 3807641257 is about 1561.5360250261.

The spelling of 3807641257 in words is "three billion, eight hundred seven million, six hundred forty-one thousand, two hundred fifty-seven".

Divisors: 1 7 12983 41897 90881 293279 543948751 3807641257