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12401025143 = 132206335569
BaseRepresentation
bin10111000110010100…
…01010000001110111
31012000020201100102112
423203022022001313
5200344130301033
65410313001235
7616210655153
oct134312120167
935006640375
1012401025143
115294067811
1224a10b321b
131228274900
14858dac063
154c8a87c48
hex2e328a077

12401025143 has 12 divisors (see below), whose sum is σ = 13435215840. Its totient is φ = 11441229696.

The previous prime is 12401025121. The next prime is 12401025149. The reversal of 12401025143 is 34152010421.

It is not a de Polignac number, because 12401025143 - 28 = 12401024887 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12401025149) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 330863 + ... + 366431.

It is an arithmetic number, because the mean of its divisors is an integer number (1119601320).

Almost surely, 212401025143 is an apocalyptic number.

12401025143 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

12401025143 is a deficient number, since it is larger than the sum of its proper divisors (1034190697).

12401025143 is a wasteful number, since it uses less digits than its factorization.

12401025143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37658 (or 37645 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

Adding to 12401025143 its reverse (34152010421), we get a palindrome (46553035564).

The spelling of 12401025143 in words is "twelve billion, four hundred one million, twenty-five thousand, one hundred forty-three".

Divisors: 1 13 169 2063 26819 35569 348647 462397 6011161 73378847 953925011 12401025143