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7675161664 = 264722332
BaseRepresentation
bin1110010010111100…
…11010110001000000
3201210220011121110211
413021132122301000
5111204320133124
63305333203504
7361124540422
oct71136326100
921726147424
107675161664
113289479615
1215a2490594
139541598a1
1452b4aa812
152edc31e94
hex1c979ac40

7675161664 has 63 divisors (see below), whose sum is σ = 15628418197. Its totient is φ = 3739810304.

The previous prime is 7675161647. The next prime is 7675161667. The reversal of 7675161664 is 4661615767.

The square root of 7675161664 is 87608.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 1558670400 + 6116491264 = 39480^2 + 78208^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7675161667) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 32940492 + ... + 32940724.

Almost surely, 27675161664 is an apocalyptic number.

7675161664 is the 87608-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7675161664

7675161664 is an abundant number, since it is smaller than the sum of its proper divisors (7953256533).

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

7675161664 is an frugal number, since it uses more digits than its factorization.

7675161664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 572 (or 282 counting only the distinct ones).

The product of its digits is 1270080, while the sum is 49.

The cubic root of 7675161664 is about 1972.5552542802. Note that the first 3 decimals are identical.

Multiplying 7675161664 by its sum of digits (49), we get a square (376082921536 = 6132562).

The spelling of 7675161664 in words is "seven billion, six hundred seventy-five million, one hundred sixty-one thousand, six hundred sixty-four".

Divisors: 1 2 4 8 16 32 47 64 94 188 233 376 466 752 932 1504 1864 2209 3008 3728 4418 7456 8836 10951 14912 17672 21902 35344 43804 54289 70688 87608 108578 141376 175216 217156 350432 434312 514697 700864 868624 1029394 1737248 2058788 2551583 3474496 4117576 5103166 8235152 10206332 16470304 20412664 32940608 40825328 81650656 119924401 163301312 239848802 479697604 959395208 1918790416 3837580832 7675161664