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2634048640 = 2754115701
BaseRepresentation
bin1001110100000000…
…0110010010000000
320210120102112110001
42131000012102000
520343304024030
61113212445344
7122163021046
oct23500062200
96716375401
102634048640
111131940803
12616179854
1332c934982
141adb86396
151063a8cca
hex9d006480

2634048640 has 32 divisors (see below), whose sum is σ = 6297024060. Its totient is φ = 1053619200.

The previous prime is 2634048623. The next prime is 2634048661. The reversal of 2634048640 is 468404362.

It can be written as a sum of positive squares in 2 ways, for example, as 2446687296 + 187361344 = 49464^2 + 13688^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is a self number, because there is not a number n which added to its sum of digits gives 2634048640.

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, 2057211 + ... + 2058490.

Almost surely, 22634048640 is an apocalyptic number.

2634048640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2634048640 is an abundant number, since it is smaller than the sum of its proper divisors (3662975420).

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

2634048640 is an equidigital number, since it uses as much as digits as its factorization.

2634048640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4115720 (or 4115708 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 37.

The square root of 2634048640 is about 51322.9835453864. The cubic root of 2634048640 is about 1381.0453187558.

The spelling of 2634048640 in words is "two billion, six hundred thirty-four million, forty-eight thousand, six hundred forty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 128 160 320 640 4115701 8231402 16462804 20578505 32925608 41157010 65851216 82314020 131702432 164628040 263404864 329256080 526809728 658512160 1317024320 2634048640