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8304906240 = 21233523653
BaseRepresentation
bin1111011110000001…
…01101000000000000
3210102210010221122000
413233000231000000
5114002023444430
63452030544000
7412542352431
oct75700550000
923383127560
108304906240
1135819a2a84
121739368000
13a2476b107
1458ad97488
15339177e60
hex1ef02d000

8304906240 has 416 divisors, whose sum is σ = 30855824640. Its totient is φ = 2115108864.

The previous prime is 8304906227. The next prime is 8304906277. The reversal of 8304906240 is 426094038.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 8304906195 and 8304906204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12717754 + ... + 12718406.

Almost surely, 28304906240 is an apocalyptic number.

8304906240 is a gapful number since it is divisible by the number (80) 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 8304906240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15427912320).

8304906240 is an abundant number, since it is smaller than the sum of its proper divisors (22550918400).

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

8304906240 is a wasteful number, since it uses less digits than its factorization.

8304906240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 714 (or 686 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 8304906240 is about 91131.2583036139. The cubic root of 8304906240 is about 2025.0927145479.

The spelling of 8304906240 in words is "eight billion, three hundred four million, nine hundred six thousand, two hundred forty".