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30973492080 = 24325791912851
BaseRepresentation
bin11100110110001010…
…011111101101110000
32221221121002102110100
4130312022133231300
51001413203221310
622121245232400
72144360224116
oct346612375560
987847072410
1030973492080
1112154802043
126004b62700
132bc7c8090b
1416db855ab6
15c14320ec0
hex73629fb70

30973492080 has 240 divisors, whose sum is σ = 105924648960. Its totient is φ = 8109504000.

The previous prime is 30973492051. The next prime is 30973492103. The reversal of 30973492080 is 8029437903.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (240).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10862655 + ... + 10865505.

It is an arithmetic number, because the mean of its divisors is an integer number (441352704).

Almost surely, 230973492080 is an apocalyptic number.

30973492080 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 30973492080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52962324480).

30973492080 is an abundant number, since it is smaller than the sum of its proper divisors (74951156880).

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

30973492080 is a wasteful number, since it uses less digits than its factorization.

30973492080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3140 (or 3131 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 45.

The spelling of 30973492080 in words is "thirty billion, nine hundred seventy-three million, four hundred ninety-two thousand, eighty".