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2640485048 = 231307252533
BaseRepresentation
bin1001110101100010…
…1001101010111000
320211000112112112112
42131120221222320
520401431010143
61114002431452
7122301516065
oct23530515270
96730475475
102640485048
111135537553
12618362588
133310794b6
141b097dc6c
15106c2ae18
hex9d629ab8

2640485048 has 16 divisors (see below), whose sum is σ = 4954717080. Its totient is φ = 1319227168.

The previous prime is 2640484991. The next prime is 2640485053. The reversal of 2640485048 is 8405840462.

2640485048 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-4 number, since 4×26404850484 (a number of 39 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 2640484996 and 2640485014.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115811 + ... + 136722.

Almost surely, 22640485048 is an apocalyptic number.

It is an amenable number.

2640485048 is a deficient number, since it is larger than the sum of its proper divisors (2314232032).

2640485048 is a wasteful number, since it uses less digits than its factorization.

2640485048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253846 (or 253842 counting only the distinct ones).

The product of its (nonzero) digits is 245760, while the sum is 41.

The square root of 2640485048 is about 51385.6502148216. The cubic root of 2640485048 is about 1382.1692844292.

The spelling of 2640485048 in words is "two billion, six hundred forty million, four hundred eighty-five thousand, forty-eight".

Divisors: 1 2 4 8 1307 2614 5228 10456 252533 505066 1010132 2020264 330060631 660121262 1320242524 2640485048