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2638074835 = 5111071133967
BaseRepresentation
bin1001110100111101…
…1101001111010011
320210212000002100101
42131033131033103
520400321343320
61113435033231
7122242160164
oct23517351723
96725002311
102638074835
111134140740
1261759b817
13330714436
141b051376b
15106901c0a
hex9d3dd3d3

2638074835 has 32 divisors (see below), whose sum is σ = 3517489152. Its totient is φ = 1883374080.

The previous prime is 2638074827. The next prime is 2638074839. The reversal of 2638074835 is 5384708362.

It is not a de Polignac number, because 2638074835 - 23 = 2638074827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2638074839) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 663022 + ... + 666988.

It is an arithmetic number, because the mean of its divisors is an integer number (109921536).

Almost surely, 22638074835 is an apocalyptic number.

2638074835 is a deficient number, since it is larger than the sum of its proper divisors (879414317).

2638074835 is a wasteful number, since it uses less digits than its factorization.

2638074835 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4203.

The product of its (nonzero) digits is 967680, while the sum is 46.

The square root of 2638074835 is about 51362.1926615288. The cubic root of 2638074835 is about 1381.7486121622.

The spelling of 2638074835 in words is "two billion, six hundred thirty-eight million, seventy-four thousand, eight hundred thirty-five".

Divisors: 1 5 11 55 107 113 535 565 1177 1243 3967 5885 6215 12091 19835 43637 60455 133001 218185 424469 448271 665005 2122345 2241355 4669159 4930981 23345795 24654905 47964997 239824985 527614967 2638074835