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2642520980 = 2251112011459
BaseRepresentation
bin1001110110000001…
…1010101110010100
320211011100222022102
42131200122232110
520402441132410
61114114221232
7122325025541
oct23540325624
96734328272
102642520980
1111366a8140
12618b84818
133316100a8
141b0d4dbc8
15106ece2a5
hex9d81ab94

2642520980 has 24 divisors (see below), whose sum is σ = 6053775840. Its totient is φ = 960916640.

The previous prime is 2642520949. The next prime is 2642521001. The reversal of 2642520980 is 890252462.

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, 6005510 + ... + 6005949.

It is an arithmetic number, because the mean of its divisors is an integer number (252240660).

Almost surely, 22642520980 is an apocalyptic number.

2642520980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2642520980 is an abundant number, since it is smaller than the sum of its proper divisors (3411254860).

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

2642520980 is a wasteful number, since it uses less digits than its factorization.

2642520980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12011479 (or 12011477 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 38.

The square root of 2642520980 is about 51405.4567142439. The cubic root of 2642520980 is about 1382.5244312669.

The spelling of 2642520980 in words is "two billion, six hundred forty-two million, five hundred twenty thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 12011459 24022918 48045836 60057295 120114590 132126049 240229180 264252098 528504196 660630245 1321260490 2642520980