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30858968 = 2371274339
BaseRepresentation
bin111010110110…
…1111011011000
32011001210112202
41311231323120
530344441333
63021225332
7523203560
oct165557330
964053482
1030858968
1116467888
12a402248
136515c5a
144153da0
152a985e8
hex1d6ded8

30858968 has 32 divisors (see below), whose sum is σ = 66662400. Its totient is φ = 13118112.

The previous prime is 30858953. The next prime is 30858979. The reversal of 30858968 is 86985803.

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, 4943 + ... + 9281.

It is an arithmetic number, because the mean of its divisors is an integer number (2083200).

Almost surely, 230858968 is an apocalyptic number.

It is an amenable number.

30858968 is an abundant number, since it is smaller than the sum of its proper divisors (35803432).

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

30858968 is a wasteful number, since it uses less digits than its factorization.

30858968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4479 (or 4475 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 47.

The square root of 30858968 is about 5555.0848778394. The cubic root of 30858968 is about 313.6609590559.

The spelling of 30858968 in words is "thirty million, eight hundred fifty-eight thousand, nine hundred sixty-eight".

Divisors: 1 2 4 7 8 14 28 56 127 254 508 889 1016 1778 3556 4339 7112 8678 17356 30373 34712 60746 121492 242984 551053 1102106 2204212 3857371 4408424 7714742 15429484 30858968