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105204503531 = 1812812068471
BaseRepresentation
bin110000111111010101…
…1010101001111101011
3101001112212211111220202
41201332223111033223
53210424323103111
6120155201342415
710413031345121
oct1417653251753
9331485744822
10105204503531
1140687221696
1218480937a0b
139bc7b4142a
145140357911
152b0b0d9b3b
hex187ead53eb

105204503531 has 8 divisors (see below), whose sum is σ = 106162256928. Its totient is φ = 104250888000.

The previous prime is 105204503507. The next prime is 105204503533. The reversal of 105204503531 is 135305402501.

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 105204503531 - 214 = 105204487147 is a prime.

It is a super-2 number, since 2×1052045035312 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 105204503494 and 105204503503.

It is not an unprimeable number, because it can be changed into a prime (105204503533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 983375 + ... + 1085096.

It is an arithmetic number, because the mean of its divisors is an integer number (13270282116).

Almost surely, 2105204503531 is an apocalyptic number.

105204503531 is a deficient number, since it is larger than the sum of its proper divisors (957753397).

105204503531 is a wasteful number, since it uses less digits than its factorization.

105204503531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2068933.

The product of its (nonzero) digits is 9000, while the sum is 29.

The spelling of 105204503531 in words is "one hundred five billion, two hundred four million, five hundred three thousand, five hundred thirty-one".

Divisors: 1 181 281 50861 2068471 374393251 581240351 105204503531