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30851712000 = 210335379113
BaseRepresentation
bin11100101110111001…
…111100010000000000
32221122002221100121000
4130232321330100000
51001141014241000
622101215132000
72141351140134
oct345671742000
987562840530
1030851712000
11120a1a9494a
125b90214000
132ba89826b5
1416c95d53c4
15c087b8000
hex72ee7c400

30851712000 has 704 divisors, whose sum is σ = 116492313600. Its totient is φ = 8051097600.

The previous prime is 30851711983. The next prime is 30851712043. The reversal of 30851712000 is 21715803.

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

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, 273023944 + ... + 273024056.

Almost surely, 230851712000 is an apocalyptic number.

30851712000 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 30851712000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58246156800).

30851712000 is an abundant number, since it is smaller than the sum of its proper divisors (85640601600).

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

30851712000 is a wasteful number, since it uses less digits than its factorization.

30851712000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236 (or 202 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

The spelling of 30851712000 in words is "thirty billion, eight hundred fifty-one million, seven hundred twelve thousand".