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30017988000 = 25325373111317
BaseRepresentation
bin11011111101001101…
…100010010110100000
32212111000010210021100
4123331031202112200
5442434101104000
621442353354400
72111605455000
oct337515422640
985430123240
1030017988000
111180440a750
125998b68a00
132aa50227a0
14164a9ac000
15baa4cda00
hex6fd3625a0

30017988000 has 2304 divisors, whose sum is σ = 154543334400. Its totient is φ = 5419008000.

The previous prime is 30017987981. The next prime is 30017988019. The reversal of 30017988000 is 88971003.

It is an interprime number because it is at equal distance from previous prime (30017987981) and next prime (30017988019).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 1765763992 + ... + 1765764008.

It is an arithmetic number, because the mean of its divisors is an integer number (67076100).

Almost surely, 230017988000 is an apocalyptic number.

30017988000 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 30017988000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77271667200).

30017988000 is an abundant number, since it is smaller than the sum of its proper divisors (124525346400).

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

30017988000 is a wasteful number, since it uses less digits than its factorization.

30017988000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93 (or 58 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The spelling of 30017988000 in words is "thirty billion, seventeen million, nine hundred eighty-eight thousand".