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3157414640 = 24539679949
BaseRepresentation
bin1011110000110010…
…0101001011110000
322011001020021121222
42330030211023300
522431244232030
61241150204212
7141146403332
oct27414451360
98131207558
103157414640
111380307396
127414b3668
133b41ab2b3
1421d4a1452
151372da3e5
hexbc3252f0

3157414640 has 40 divisors (see below), whose sum is σ = 7343577600. Its totient is φ = 1262520576.

The previous prime is 3157414613. The next prime is 3157414649. The reversal of 3157414640 is 464147513.

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 3157414640.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3157414649) 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, 312386 + ... + 322334.

It is an arithmetic number, because the mean of its divisors is an integer number (183589440).

Almost surely, 23157414640 is an apocalyptic number.

It is an amenable number.

3157414640 is an abundant number, since it is smaller than the sum of its proper divisors (4186162960).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3157414640 is a wasteful number, since it uses less digits than its factorization.

3157414640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13929 (or 13923 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 35.

The square root of 3157414640 is about 56190.8768395725. The cubic root of 3157414640 is about 1467.0464769337.

The spelling of 3157414640 in words is "three billion, one hundred fifty-seven million, four hundred fourteen thousand, six hundred forty".

Divisors: 1 2 4 5 8 10 16 20 40 80 3967 7934 9949 15868 19835 19898 31736 39670 39796 49745 63472 79340 79592 99490 158680 159184 198980 317360 397960 795920 39467683 78935366 157870732 197338415 315741464 394676830 631482928 789353660 1578707320 3157414640