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2660492480 = 265192979191
BaseRepresentation
bin1001111010010011…
…1110010011000000
320212102012000120112
42132210332103000
520422041224410
61115555330452
7122633545562
oct23644762300
96772160515
102660492480
111145862418
12622bb0a28
13335263109
141b34ab332
1510887e105
hex9e93e4c0

2660492480 has 224 divisors, whose sum is σ = 7022592000. Its totient is φ = 956067840.

The previous prime is 2660492479. The next prime is 2660492489. The reversal of 2660492480 is 842940662.

It is a super-2 number, since 2×26604924802 = 14156440472273100800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2660492489) 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, 13929185 + ... + 13929375.

Almost surely, 22660492480 is an apocalyptic number.

2660492480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2660492480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3511296000).

2660492480 is an abundant number, since it is smaller than the sum of its proper divisors (4362099520).

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

2660492480 is a wasteful number, since it uses less digits than its factorization.

2660492480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335 (or 325 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 41.

The square root of 2660492480 is about 51579.9620007615. The cubic root of 2660492480 is about 1385.6514861742.

The spelling of 2660492480 in words is "two billion, six hundred sixty million, four hundred ninety-two thousand, four hundred eighty".