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7980960 = 2535131279
BaseRepresentation
bin11110011100011110100000
3120000110211010
4132130132200
54020342320
6443020520
7124560051
oct36343640
916013733
107980960
114561239
12280a740
131865880
1410ba728
15a79ae0
hex79c7a0

7980960 has 96 divisors (see below), whose sum is σ = 27095040. Its totient is φ = 1963008.

The previous prime is 7980953. The next prime is 7980983. The reversal of 7980960 is 690897.

7980960 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an Ulam number.

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, 5601 + ... + 6879.

It is an arithmetic number, because the mean of its divisors is an integer number (282240).

Almost surely, 27980960 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 7980960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13547520).

7980960 is an abundant number, since it is smaller than the sum of its proper divisors (19114080).

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

7980960 is a wasteful number, since it uses less digits than its factorization.

7980960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1310 (or 1302 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 39.

The square root of 7980960 is about 2825.0592914132. The cubic root of 7980960 is about 199.8412072911.

The spelling of 7980960 in words is "seven million, nine hundred eighty thousand, nine hundred sixty".

Divisors: 1 2 3 4 5 6 8 10 12 13 15 16 20 24 26 30 32 39 40 48 52 60 65 78 80 96 104 120 130 156 160 195 208 240 260 312 390 416 480 520 624 780 1040 1248 1279 1560 2080 2558 3120 3837 5116 6240 6395 7674 10232 12790 15348 16627 19185 20464 25580 30696 33254 38370 40928 49881 51160 61392 66508 76740 83135 99762 102320 122784 133016 153480 166270 199524 204640 249405 266032 306960 332540 399048 498810 532064 613920 665080 798096 997620 1330160 1596192 1995240 2660320 3990480 7980960