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64088026668 = 22326129183983
BaseRepresentation
bin111011101011111100…
…011010111000101100
320010102101221002002100
4323223330122320230
52022223013323133
645235220455100
74426106144541
oct735374327054
9203371832070
1064088026668
11251a8024aa6
1210506b4a490
13607468c593
14315d79cbc8
151a015b4e13
hexeebf1ae2c

64088026668 has 36 divisors (see below), whose sum is σ = 164656037728. Its totient is φ = 21012467040.

The previous prime is 64088026663. The next prime is 64088026687. The reversal of 64088026668 is 86662088046.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-3 number, since 3×640880266683 (a number of 33 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (64088026663) 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, 14589796 + ... + 14594187.

Almost surely, 264088026668 is an apocalyptic number.

It is an amenable number.

64088026668 is an abundant number, since it is smaller than the sum of its proper divisors (100568011060).

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

64088026668 is a wasteful number, since it uses less digits than its factorization.

64088026668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29184054 (or 29184049 counting only the distinct ones).

The product of its (nonzero) digits is 5308416, while the sum is 54.

The spelling of 64088026668 in words is "sixty-four billion, eighty-eight million, twenty-six thousand, six hundred sixty-eight".

Divisors: 1 2 3 4 6 9 12 18 36 61 122 183 244 366 549 732 1098 2196 29183983 58367966 87551949 116735932 175103898 262655847 350207796 525311694 1050623388 1780222963 3560445926 5340668889 7120891852 10681337778 16022006667 21362675556 32044013334 64088026668