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2640524048 = 241743401563
BaseRepresentation
bin1001110101100011…
…0011001100010000
320211000121112000222
42131120303030100
520401433232143
61114003332212
7122302040561
oct23530631420
96730545028
102640524048
111135563888
12618381068
13331091186
141b0990168
15106c37768
hex9d633310

2640524048 has 80 divisors (see below), whose sum is σ = 5566625856. Its totient is φ = 1208524800.

The previous prime is 2640524017. The next prime is 2640524053. The reversal of 2640524048 is 8404250462.

It is a junction number, because it is equal to n+sod(n) for n = 2640523999 and 2640524017.

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, 4689815 + ... + 4690377.

Almost surely, 22640524048 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 2640524048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2783312928).

2640524048 is an abundant number, since it is smaller than the sum of its proper divisors (2926101808).

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

2640524048 is a wasteful number, since it uses less digits than its factorization.

2640524048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1032 (or 1026 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 35.

The square root of 2640524048 is about 51386.0296967960. The cubic root of 2640524048 is about 1382.1760892820.

The spelling of 2640524048 in words is "two billion, six hundred forty million, five hundred twenty-four thousand, forty-eight".

Divisors: 1 2 4 8 16 17 34 43 68 86 136 172 272 344 401 563 688 731 802 1126 1462 1604 2252 2924 3208 4504 5848 6416 6817 9008 9571 11696 13634 17243 19142 24209 27268 34486 38284 48418 54536 68972 76568 96836 109072 137944 153136 193672 225763 275888 293131 387344 411553 451526 586262 823106 903052 1172524 1646212 1806104 2345048 3292424 3612208 3837971 4690096 6584848 7675942 9707809 15351884 19415618 30703768 38831236 61407536 77662472 155324944 165032753 330065506 660131012 1320262024 2640524048