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2648808980 = 2251019129971
BaseRepresentation
bin1001110111100001…
…1001111000010100
320211121012102211022
42131320121320110
520411043341410
61114501100312
7122432335106
oct23570317024
96747172738
102648808980
11113a202434
1261b0b7698
13332a021bc
141b1b09576
15107822455
hex9de19e14

2648808980 has 24 divisors (see below), whose sum is σ = 5568000480. Its totient is φ = 1058475680.

The previous prime is 2648808979. The next prime is 2648809001. The reversal of 2648808980 is 898088462.

2648808980 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-3 number, since 3×26488089803 (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44606 + ... + 85365.

It is an arithmetic number, because the mean of its divisors is an integer number (232000020).

Almost surely, 22648808980 is an apocalyptic number.

2648808980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2648808980 is an abundant number, since it is smaller than the sum of its proper divisors (2919191500).

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

2648808980 is a wasteful number, since it uses less digits than its factorization.

2648808980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130999 (or 130997 counting only the distinct ones).

The product of its (nonzero) digits is 1769472, while the sum is 53.

The square root of 2648808980 is about 51466.5811959567. The cubic root of 2648808980 is about 1383.6201560705.

The spelling of 2648808980 in words is "two billion, six hundred forty-eight million, eight hundred eight thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 20 1019 2038 4076 5095 10190 20380 129971 259942 519884 649855 1299710 2599420 132440449 264880898 529761796 662202245 1324404490 2648808980