Search a number
-
+
64483979031 = 327399695381
BaseRepresentation
bin111100000011100010…
…110110111100010111
320011102222222112121200
4330003202312330113
52024030344312111
645342403243543
74441654530603
oct740342667427
9204388875550
1064483979031
112539058595a
12105b76795b3
136108714714
14319a1cc503
151a26229256
hexf038b6f17

64483979031 has 12 divisors (see below), whose sum is σ = 93269574840. Its totient is φ = 42931142640.

The previous prime is 64483978973. The next prime is 64483979041. The reversal of 64483979031 is 13097938446.

It is a happy number.

64483979031 is a `hidden beast` number, since 64 + 483 + 9 + 79 + 0 + 31 = 666.

It is not a de Polignac number, because 64483979031 - 26 = 64483978967 is a prime.

It is a super-2 number, since 2×644839790312 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64483979041) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4841040 + ... + 4854341.

It is an arithmetic number, because the mean of its divisors is an integer number (7772464570).

Almost surely, 264483979031 is an apocalyptic number.

64483979031 is a deficient number, since it is larger than the sum of its proper divisors (28785595809).

64483979031 is a wasteful number, since it uses less digits than its factorization.

64483979031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9696126 (or 9696123 counting only the distinct ones).

The product of its (nonzero) digits is 3919104, while the sum is 54.

The spelling of 64483979031 in words is "sixty-four billion, four hundred eighty-three million, nine hundred seventy-nine thousand, thirty-one".

Divisors: 1 3 9 739 2217 6651 9695381 29086143 87258429 7164886559 21494659677 64483979031