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30830731608 = 2337537170441
BaseRepresentation
bin11100101101101001…
…111010000101011000
32221120122110102220110
4130231221322011120
51001120131402413
622055145324320
72141004615615
oct345551720530
987518412813
1030830731608
1112091164a86
125b851966a0
132ba4517c71
1416c68d350c
15c06a218c3
hex72da7a158

30830731608 has 32 divisors (see below), whose sum is σ = 77087507760. Its totient is φ = 10275486720.

The previous prime is 30830731579. The next prime is 30830731619. The reversal of 30830731608 is 80613703803.

It is a super-2 number, since 2×308307316082 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95668 + ... + 266108.

Almost surely, 230830731608 is an apocalyptic number.

It is an amenable number.

30830731608 is an abundant number, since it is smaller than the sum of its proper divisors (46256776152).

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

30830731608 is a wasteful number, since it uses less digits than its factorization.

30830731608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177987 (or 177983 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 39.

The spelling of 30830731608 in words is "thirty billion, eight hundred thirty million, seven hundred thirty-one thousand, six hundred eight".

Divisors: 1 2 3 4 6 8 12 24 7537 15074 22611 30148 45222 60296 90444 170441 180888 340882 511323 681764 1022646 1363528 2045292 4090584 1284613817 2569227634 3853841451 5138455268 7707682902 10276910536 15415365804 30830731608