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64130344404 = 22371495123869
BaseRepresentation
bin111011101110011101…
…110110010111010100
320010112100120001002220
4323232131312113110
52022314332010104
645243331502340
74430131635060
oct735635662724
9203470501086
1064130344404
11252199a8a35
12105191579b0
136080388069
143165256aa0
151a051737d9
hexeee7765d4

64130344404 has 48 divisors (see below), whose sum is σ = 172162032000. Its totient is φ = 18199979136.

The previous prime is 64130344403. The next prime is 64130344433. The reversal of 64130344404 is 40444303146.

It is a super-2 number, since 2×641303444042 (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 (64130344403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2549419 + ... + 2574450.

It is an arithmetic number, because the mean of its divisors is an integer number (3586709000).

Almost surely, 264130344404 is an apocalyptic number.

It is an amenable number.

64130344404 is an abundant number, since it is smaller than the sum of its proper divisors (108031687596).

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

64130344404 is a wasteful number, since it uses less digits than its factorization.

64130344404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5124032 (or 5124030 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 33.

The spelling of 64130344404 in words is "sixty-four billion, one hundred thirty million, three hundred forty-four thousand, four hundred four".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 149 298 447 596 894 1043 1788 2086 3129 4172 6258 12516 5123869 10247738 15371607 20495476 30743214 35867083 61486428 71734166 107601249 143468332 215202498 430404996 763456481 1526912962 2290369443 3053825924 4580738886 5344195367 9161477772 10688390734 16032586101 21376781468 32065172202 64130344404