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2660468620 = 225157847283
BaseRepresentation
bin1001111010010011…
…1000011110001100
320212102010210211211
42132210320132030
520422034443440
61115555024204
7122633416165
oct23644703614
96772123754
102660468620
1111458464a7
12622b9b064
133352552b4
141b34a276c
15108876eea
hex9e93878c

2660468620 has 24 divisors (see below), whose sum is σ = 5622576624. Its totient is φ = 1057407936.

The previous prime is 2660468617. The next prime is 2660468633. The reversal of 2660468620 is 268640662.

2660468620 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 420502 + ... + 426781.

It is an arithmetic number, because the mean of its divisors is an integer number (234274026).

Almost surely, 22660468620 is an apocalyptic number.

2660468620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2660468620 is an abundant number, since it is smaller than the sum of its proper divisors (2962108004).

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

2660468620 is a wasteful number, since it uses less digits than its factorization.

2660468620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 847449 (or 847447 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 40.

The square root of 2660468620 is about 51579.7307088744. The cubic root of 2660468620 is about 1385.6473438655.

The spelling of 2660468620 in words is "two billion, six hundred sixty million, four hundred sixty-eight thousand, six hundred twenty".

Divisors: 1 2 4 5 10 20 157 314 628 785 1570 3140 847283 1694566 3389132 4236415 8472830 16945660 133023431 266046862 532093724 665117155 1330234310 2660468620