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4897039680 = 263451314533
BaseRepresentation
bin1001000111110001…
…01110010101000000
3110122021122101120000
410203320232111000
540012120232210
62125532320000
7232232102421
oct44370562500
913567571500
104897039680
112093284435
12b48013000
1360071c820
1434653d648
151d9db9ac0
hex123e2e540

4897039680 has 280 divisors, whose sum is σ = 18760894152. Its totient is φ = 1205342208.

The previous prime is 4897039663. The next prime is 4897039691. The reversal of 4897039680 is 869307984.

4897039680 is a `hidden beast` number, since 489 + 70 + 3 + 96 + 8 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 129413376 + 4767626304 = 11376^2 + 69048^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 329694 + ... + 344226.

Almost surely, 24897039680 is an apocalyptic number.

4897039680 is a gapful number since it is divisible by the number (40) 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 4897039680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9380447076).

4897039680 is an abundant number, since it is smaller than the sum of its proper divisors (13863854472).

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

4897039680 is a wasteful number, since it uses less digits than its factorization.

4897039680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14575 (or 14556 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 54.

The square root of 4897039680 is about 69978.8516624844. The cubic root of 4897039680 is about 1698.1571356284.

The spelling of 4897039680 in words is "four billion, eight hundred ninety-seven million, thirty-nine thousand, six hundred eighty".