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18050532000 = 2535317194657
BaseRepresentation
bin10000110011111001…
…010100001010100000
31201120222021000220020
4100303321110022200
5243431414011000
612143045313440
71206210663504
oct206371241240
951528230806
1018050532000
117723066946
1235b9105880
131918843b87
14c33422304
15709a3aba0
hex433e542a0

18050532000 has 384 divisors, whose sum is σ = 65921506560. Its totient is φ = 4290969600.

The previous prime is 18050531977. The next prime is 18050532001. The reversal of 18050532000 is 23505081.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (18050532001) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3873672 + ... + 3878328.

It is an arithmetic number, because the mean of its divisors is an integer number (171670590).

Almost surely, 218050532000 is an apocalyptic number.

18050532000 is a gapful number since it is divisible by the number (10) 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 18050532000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32960753280).

18050532000 is an abundant number, since it is smaller than the sum of its proper divisors (47870974560).

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

18050532000 is a wasteful number, since it uses less digits than its factorization.

18050532000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4721 (or 4703 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

The spelling of 18050532000 in words is "eighteen billion, fifty million, five hundred thirty-two thousand".