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1064468728724 = 221715653951893
BaseRepresentation
bin11110111110101110100…
…01111100101110010100
310202202120122201011121112
433133113101330232110
5114420012443304344
62133002111034152
7136622345622242
oct17372721745624
93682518634545
101064468728724
11380490934a95
1215237450b958
13794c07a09bb
14397405c5792
151ca5147bc9e
hexf7d747cb94

1064468728724 has 12 divisors (see below), whose sum is σ = 1972397938644. Its totient is φ = 500926460544.

The previous prime is 1064468728717. The next prime is 1064468728777. The reversal of 1064468728724 is 4278278644601.

It can be written as a sum of positive squares in 2 ways, for example, as 595953120400 + 468515608324 = 771980^2 + 684482^2 .

It is a super-2 number, since 2×10644687287242 (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7826975879 + ... + 7826976014.

It is an arithmetic number, because the mean of its divisors is an integer number (164366494887).

Almost surely, 21064468728724 is an apocalyptic number.

It is an amenable number.

1064468728724 is a deficient number, since it is larger than the sum of its proper divisors (907929209920).

1064468728724 is a wasteful number, since it uses less digits than its factorization.

1064468728724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15653951914 (or 15653951912 counting only the distinct ones).

The product of its (nonzero) digits is 28901376, while the sum is 59.

The spelling of 1064468728724 in words is "one trillion, sixty-four billion, four hundred sixty-eight million, seven hundred twenty-eight thousand, seven hundred twenty-four".

Divisors: 1 2 4 17 34 68 15653951893 31307903786 62615807572 266117182181 532234364362 1064468728724