Search a number
-
+
30868586997 = 333777339499
BaseRepresentation
bin11100101111111010…
…010100000111110101
32221200021200200201220
4130233322110013311
51001204324240442
622103020540553
72141644442313
oct345772240765
987607620656
1030868586997
1112100570326
125b959b1759
132bac3105c1
1416cb9490b3
15c09eeceec
hex72fe941f5

30868586997 has 16 divisors (see below), whose sum is σ = 41334696000. Its totient is φ = 20490930432.

The previous prime is 30868586989. The next prime is 30868586999. The reversal of 30868586997 is 79968586803.

It is not a de Polignac number, because 30868586997 - 23 = 30868586989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30868586999) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 761754 + ... + 801252.

It is an arithmetic number, because the mean of its divisors is an integer number (2583418500).

Almost surely, 230868586997 is an apocalyptic number.

It is an amenable number.

30868586997 is a deficient number, since it is larger than the sum of its proper divisors (10466109003).

30868586997 is a wasteful number, since it uses less digits than its factorization.

30868586997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40612.

The product of its (nonzero) digits is 156764160, while the sum is 69.

The spelling of 30868586997 in words is "thirty billion, eight hundred sixty-eight million, five hundred eighty-six thousand, nine hundred ninety-seven".

Divisors: 1 3 337 773 1011 2319 39499 118497 260501 781503 13311163 30532727 39933489 91598181 10289528999 30868586997