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3225135680 = 26513775273
BaseRepresentation
bin1100000000111011…
…1010101001000000
322022202122212102122
43000032322221000
523101113320210
61252005503412
7142631125634
oct30016725100
98282585378
103225135680
111405561198
12760111b68
133c522c710
1422848cdc4
1513d215b55
hexc03baa40

3225135680 has 56 divisors (see below), whose sum is σ = 8270623032. Its totient is φ = 1190817792.

The previous prime is 3225135679. The next prime is 3225135689. The reversal of 3225135680 is 865315223.

It can be written as a sum of positive squares in 4 ways, for example, as 192210496 + 3032925184 = 13864^2 + 55072^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 3225135680.

It is not an unprimeable number, because it can be changed into a prime (3225135689) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 383477 + ... + 391796.

It is an arithmetic number, because the mean of its divisors is an integer number (147689697).

Almost surely, 23225135680 is an apocalyptic number.

It is an amenable number.

3225135680 is an abundant number, since it is smaller than the sum of its proper divisors (5045487352).

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

3225135680 is a wasteful number, since it uses less digits than its factorization.

3225135680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 775303 (or 775293 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 35.

The square root of 3225135680 is about 56790.2780412281. The cubic root of 3225135680 is about 1477.4609008371.

The spelling of 3225135680 in words is "three billion, two hundred twenty-five million, one hundred thirty-five thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 13 16 20 26 32 40 52 64 65 80 104 130 160 208 260 320 416 520 832 1040 2080 4160 775273 1550546 3101092 3876365 6202184 7752730 10078549 12404368 15505460 20157098 24808736 31010920 40314196 49617472 50392745 62021840 80628392 100785490 124043680 161256784 201570980 248087360 322513568 403141960 645027136 806283920 1612567840 3225135680