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7160405664 = 253197155291
BaseRepresentation
bin1101010101100101…
…10001111010100000
3200111000120021222210
412222302301322200
5104131030440124
63142304202120
7342304305156
oct65262617240
920430507883
107160405664
113044953835
12147a009340
138a1609239
144bcd933d6
152bd951a29
hex1aacb1ea0

7160405664 has 96 divisors (see below), whose sum is σ = 20064360960. Its totient is φ = 2229292800.

The previous prime is 7160405633. The next prime is 7160405671. The reversal of 7160405664 is 4665040617.

It is a tau number, because it is divible by the number of its divisors (96).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 101859 + ... + 157149.

It is an arithmetic number, because the mean of its divisors is an integer number (209003760).

Almost surely, 27160405664 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7160405664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10032180480).

7160405664 is an abundant number, since it is smaller than the sum of its proper divisors (12903955296).

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

7160405664 is a wasteful number, since it uses less digits than its factorization.

7160405664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55394 (or 55386 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 39.

The square root of 7160405664 is about 84619.1802371070. The cubic root of 7160405664 is about 1927.4326395398.

The spelling of 7160405664 in words is "seven billion, one hundred sixty million, four hundred five thousand, six hundred sixty-four".

Divisors: 1 2 3 4 6 8 12 16 19 24 32 38 48 57 71 76 96 114 142 152 213 228 284 304 426 456 568 608 852 912 1136 1349 1704 1824 2272 2698 3408 4047 5396 6816 8094 10792 16188 21584 32376 43168 55291 64752 110582 129504 165873 221164 331746 442328 663492 884656 1050529 1326984 1769312 2101058 2653968 3151587 3925661 4202116 5307936 6303174 7851322 8404232 11776983 12606348 15702644 16808464 23553966 25212696 31405288 33616928 47107932 50425392 62810576 74587559 94215864 100850784 125621152 149175118 188431728 223762677 298350236 376863456 447525354 596700472 895050708 1193400944 1790101416 2386801888 3580202832 7160405664