Search a number
-
+
9657157380 = 22351312380971
BaseRepresentation
bin10001111111001110…
…01000011100000100
3220221000122102110120
420333213020130010
5124234213014010
64234134221540
7461212324533
oct107747103404
926830572416
109657157380
114106239302
121a561b48b0
13bab96c010
146787da31a
153b7c39e70
hex23f9c8704

9657157380 has 48 divisors (see below), whose sum is σ = 29120046144. Its totient is φ = 2377146240.

The previous prime is 9657157283. The next prime is 9657157399. The reversal of 9657157380 is 837517569.

It is a super-3 number, since 3×96571573803 (a number of 31 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6189706 + ... + 6191265.

It is an arithmetic number, because the mean of its divisors is an integer number (606667628).

Almost surely, 29657157380 is an apocalyptic number.

It is an amenable number.

9657157380 is an abundant number, since it is smaller than the sum of its proper divisors (19462888764).

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

9657157380 is a wasteful number, since it uses less digits than its factorization.

9657157380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12380996 (or 12380994 counting only the distinct ones).

The product of its (nonzero) digits is 1587600, while the sum is 51.

The square root of 9657157380 is about 98270.8368744258. The cubic root of 9657157380 is about 2129.5267656374.

The spelling of 9657157380 in words is "nine billion, six hundred fifty-seven million, one hundred fifty-seven thousand, three hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 13 15 20 26 30 39 52 60 65 78 130 156 195 260 390 780 12380971 24761942 37142913 49523884 61904855 74285826 123809710 148571652 160952623 185714565 247619420 321905246 371429130 482857869 643810492 742858260 804763115 965715738 1609526230 1931431476 2414289345 3219052460 4828578690 9657157380