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20302404258 = 23171083718367
BaseRepresentation
bin10010111010000111…
…100001101010100010
31221101220112222220110
4102322013201222202
5313034403414013
613154330552150
71316053405653
oct227207415242
957356488813
1020302404258
1186791a58a4
123b27298656
131bb7237b76
14da852352a
157dc5a22c3
hex4ba1e1aa2

20302404258 has 32 divisors (see below), whose sum is σ = 42999634944. Its totient is φ = 6368447232.

The previous prime is 20302404217. The next prime is 20302404259. The reversal of 20302404258 is 85240420302.

It is not an unprimeable number, because it can be changed into a prime (20302404259) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1096191 + ... + 1114557.

It is an arithmetic number, because the mean of its divisors is an integer number (1343738592).

Almost surely, 220302404258 is an apocalyptic number.

20302404258 is an abundant number, since it is smaller than the sum of its proper divisors (22697230686).

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

20302404258 is a wasteful number, since it uses less digits than its factorization.

20302404258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29226.

The product of its (nonzero) digits is 15360, while the sum is 30.

The spelling of 20302404258 in words is "twenty billion, three hundred two million, four hundred four thousand, two hundred fifty-eight".

Divisors: 1 2 3 6 17 34 51 102 10837 18367 21674 32511 36734 55101 65022 110202 184229 312239 368458 552687 624478 936717 1105374 1873434 199043179 398086358 597129537 1194259074 3383734043 6767468086 10151202129 20302404258