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204031412120 = 23510634798481
BaseRepresentation
bin1011111000000100111…
…0000100011110011000
3201111122022002122021102
42332001032010132120
511320324020141440
6233421501130532
720512042250054
oct2760116043630
9644568078242
10204031412120
117959045a858
1233661859a48
13163175bb533
149c37690c64
155492351b15
hex2f81384798

204031412120 has 32 divisors (see below), whose sum is σ = 459502636320. Its totient is φ = 81535772160.

The previous prime is 204031412099. The next prime is 204031412159. The reversal of 204031412120 is 21214130402.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 204031412092 and 204031412101.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2356721 + ... + 2441760.

It is an arithmetic number, because the mean of its divisors is an integer number (14359457385).

Almost surely, 2204031412120 is an apocalyptic number.

204031412120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204031412120 is an abundant number, since it is smaller than the sum of its proper divisors (255471224200).

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

204031412120 is a wasteful number, since it uses less digits than its factorization.

204031412120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4799555 (or 4799551 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 204031412120 its reverse (21214130402), we get a palindrome (225245542522).

The spelling of 204031412120 in words is "two hundred four billion, thirty-one million, four hundred twelve thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 1063 2126 4252 5315 8504 10630 21260 42520 4798481 9596962 19193924 23992405 38387848 47984810 95969620 191939240 5100785303 10201570606 20403141212 25503926515 40806282424 51007853030 102015706060 204031412120