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204120405233 = 3719728003897
BaseRepresentation
bin1011111000011010000…
…1100011010011110001
3201111212111112221212122
42332012201203103301
511321014310431413
6233434400404025
720514202550153
oct2760641432361
9644774487778
10204120405233
1179626713688
1233687616615
131632cb7a094
149c45418ad3
15549a080108
hex2f868634f1

204120405233 has 8 divisors (see below), whose sum is σ = 210701328552. Its totient is φ = 197595490176.

The previous prime is 204120405217. The next prime is 204120405239. The reversal of 204120405233 is 332504021402.

204120405233 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 191172696289 + 12947708944 = 437233^2 + 113788^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 204120405233 - 24 = 204120405217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (204120405239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13994660 + ... + 14009237.

It is an arithmetic number, because the mean of its divisors is an integer number (26337666069).

Almost surely, 2204120405233 is an apocalyptic number.

It is an amenable number.

204120405233 is a deficient number, since it is larger than the sum of its proper divisors (6580923319).

204120405233 is a wasteful number, since it uses less digits than its factorization.

204120405233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28004131.

The product of its (nonzero) digits is 5760, while the sum is 26.

Adding to 204120405233 its reverse (332504021402), we get a palindrome (536624426635).

The spelling of 204120405233 in words is "two hundred four billion, one hundred twenty million, four hundred five thousand, two hundred thirty-three".

Divisors: 1 37 197 7289 28003897 1036144189 5516767709 204120405233