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64430135130 = 23510121264071
BaseRepresentation
bin111100000000010101…
…011101011101011010
320011022020122222200010
4330000111131131122
52023423103311010
645333201222350
74440432053364
oct740025353532
9204266588603
1064430135130
112536314a169
12105a16319b6
1360ca51181a
143192db3d34
151a21640620
hexf0055d75a

64430135130 has 32 divisors (see below), whose sum is σ = 156163344768. Its totient is φ = 17011256000.

The previous prime is 64430135123. The next prime is 64430135137. The reversal of 64430135130 is 3153103446.

64430135130 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (64430135123) and next prime (64430135137).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (64430135137) 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, 10629006 + ... + 10635065.

It is an arithmetic number, because the mean of its divisors is an integer number (4880104524).

Almost surely, 264430135130 is an apocalyptic number.

64430135130 is an abundant number, since it is smaller than the sum of its proper divisors (91733209638).

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

64430135130 is a wasteful number, since it uses less digits than its factorization.

64430135130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21264182.

The product of its (nonzero) digits is 12960, while the sum is 30.

Adding to 64430135130 its reverse (3153103446), we get a palindrome (67583238576).

The spelling of 64430135130 in words is "sixty-four billion, four hundred thirty million, one hundred thirty-five thousand, one hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 101 202 303 505 606 1010 1515 3030 21264071 42528142 63792213 106320355 127584426 212640710 318961065 637922130 2147671171 4295342342 6443013513 10738355855 12886027026 21476711710 32215067565 64430135130