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3680494560 = 25325171941193
BaseRepresentation
bin1101101101011111…
…1110001111100000
3100111111111111101100
43123113332033200
530014201311220
61405113434400
7160130454561
oct33327761740
910444444340
103680494560
1116195a8046
1286870ba00
13468684642
1426cb44168
151681b1d90
hexdb5fe3e0

3680494560 has 576 divisors, whose sum is σ = 14414137920. Its totient is φ = 849346560.

The previous prime is 3680494537. The next prime is 3680494567. The reversal of 3680494560 is 654940863.

3680494560 is a `hidden beast` number, since 3 + 6 + 80 + 4 + 9 + 4 + 560 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3680494567) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 19069824 + ... + 19070016.

It is an arithmetic number, because the mean of its divisors is an integer number (25024545).

Almost surely, 23680494560 is an apocalyptic number.

3680494560 is a gapful number since it is divisible by the number (30) 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 3680494560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7207068960).

3680494560 is an abundant number, since it is smaller than the sum of its proper divisors (10733643360).

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

3680494560 is a wasteful number, since it uses less digits than its factorization.

3680494560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291 (or 280 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 45.

The square root of 3680494560 is about 60667.0797055537. The cubic root of 3680494560 is about 1543.9576845052.

The spelling of 3680494560 in words is "three billion, six hundred eighty million, four hundred ninety-four thousand, five hundred sixty".