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7968061696 = 28727972
BaseRepresentation
bin1110110101110111…
…01111100100000000
3202120022022110210011
413122323233210000
5112304310433241
63354355114304
7401312256400
oct73273574400
922508273704
107968061696
113419843761
1216645a2994
1399ca3cb0a
14558352800
153197dc281
hex1daeef900

7968061696 has 81 divisors (see below), whose sum is σ = 18524975889. Its totient is φ = 3410598912.

The previous prime is 7968061693. The next prime is 7968061709. The reversal of 7968061696 is 6961608697.

The square root of 7968061696 is 89264.

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., 3863865600 + 4104196096 = 62160^2 + 64064^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 7968061696.

It is not an unprimeable number, because it can be changed into a prime (7968061693) 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, 9997170 + ... + 9997966.

Almost surely, 27968061696 is an apocalyptic number.

7968061696 is the 89264-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7968061696

7968061696 is an abundant number, since it is smaller than the sum of its proper divisors (10556914193).

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

7968061696 is an frugal number, since it uses more digits than its factorization.

7968061696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1624 (or 806 counting only the distinct ones).

The product of its (nonzero) digits is 5878656, while the sum is 58.

The cubic root of 7968061696 is about 1997.3349249315.

It can be divided in two parts, 79680 and 61696, that added together give a square (141376 = 3762).

The spelling of 7968061696 in words is "seven billion, nine hundred sixty-eight million, sixty-one thousand, six hundred ninety-six".

Divisors: 1 2 4 7 8 14 16 28 32 49 56 64 98 112 128 196 224 256 392 448 784 797 896 1568 1594 1792 3136 3188 5579 6272 6376 11158 12544 12752 22316 25504 39053 44632 51008 78106 89264 102016 156212 178528 204032 312424 357056 624848 635209 714112 1249696 1270418 1428224 2499392 2540836 4446463 4998784 5081672 8892926 9997568 10163344 17785852 20326688 31125241 35571704 40653376 62250482 71143408 81306752 124500964 142286816 162613504 249001928 284573632 498003856 569147264 996007712 1138294528 1992015424 3984030848 7968061696