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2500668980 = 225592119211
BaseRepresentation
bin1001010100001101…
…0010111000110100
320110021110010221122
42111003102320310
520110132401410
61052050003112
7115653223055
oct22503227064
96407403848
102500668980
111073620687
12599576498
1330b104ab4
1419a18672c
15e980de55
hex950d2e34

2500668980 has 24 divisors (see below), whose sum is σ = 5340414240. Its totient is φ = 983313440.

The previous prime is 2500668979. The next prime is 2500668991. The reversal of 2500668980 is 898660052.

It is a happy number.

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, 1058426 + ... + 1060785.

It is an arithmetic number, because the mean of its divisors is an integer number (222517260).

Almost surely, 22500668980 is an apocalyptic number.

2500668980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2500668980 is an abundant number, since it is smaller than the sum of its proper divisors (2839745260).

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

2500668980 is a wasteful number, since it uses less digits than its factorization.

2500668980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2119279 (or 2119277 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 44.

The square root of 2500668980 is about 50006.6893525256. The cubic root of 2500668980 is about 1357.3298569074.

The spelling of 2500668980 in words is "two billion, five hundred million, six hundred sixty-eight thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 20 59 118 236 295 590 1180 2119211 4238422 8476844 10596055 21192110 42384220 125033449 250066898 500133796 625167245 1250334490 2500668980