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30996000 = 253353741
BaseRepresentation
bin111011000111…
…1011000100000
32011022202112000
41312033120200
530413333000
63024204000
7524314230
oct166173040
964282460
1030996000
1116550832
12a469600
136563439
14418bcc0
152ac4000
hex1d8f620

30996000 has 384 divisors, whose sum is σ = 132088320. Its totient is φ = 6912000.

The previous prime is 30995971. The next prime is 30996029. The reversal of 30996000 is 69903.

It is an interprime number because it is at equal distance from previous prime (30995971) and next prime (30996029).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 755980 + ... + 756020.

It is an arithmetic number, because the mean of its divisors is an integer number (343980).

Almost surely, 230996000 is an apocalyptic number.

30996000 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 30996000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66044160).

30996000 is an abundant number, since it is smaller than the sum of its proper divisors (101092320).

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

30996000 is a wasteful number, since it uses less digits than its factorization.

30996000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82 (or 58 counting only the distinct ones).

The product of its (nonzero) digits is 1458, while the sum is 27.

The square root of 30996000 is about 5567.4051406378. The cubic root of 30996000 is about 314.1245533433.

The spelling of 30996000 in words is "thirty million, nine hundred ninety-six thousand".