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100431688481279 = 809136790814193
BaseRepresentation
bin10110110101011110010011…
…000111011011100111111111
3111011121011202001100112112022
4112311132103013123213333
5101130433044222400104
6553333403013030355
730103643602531121
oct2665362307334777
9434534661315468
10100431688481279
112a000926998581
12b3204013253bb
13440688a8c1a0c
141ab2cc3787211
15b926d316cbbe
hex5b57931db9ff

100431688481279 has 8 divisors (see below), whose sum is σ = 100629392087520. Its totient is φ = 100234166507776.

The previous prime is 100431688481269. The next prime is 100431688481353. The reversal of 100431688481279 is 972184886134001.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-100431688481279 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 (100431688481269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44301194 + ... + 46512999.

It is an arithmetic number, because the mean of its divisors is an integer number (12578674010940).

Almost surely, 2100431688481279 is an apocalyptic number.

100431688481279 is a deficient number, since it is larger than the sum of its proper divisors (197703606241).

100431688481279 is an equidigital number, since it uses as much as digits as its factorization.

100431688481279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90816369.

The product of its (nonzero) digits is 18579456, while the sum is 62.

The spelling of 100431688481279 in words is "one hundred trillion, four hundred thirty-one billion, six hundred eighty-eight million, four hundred eighty-one thousand, two hundred seventy-nine".

Divisors: 1 809 1367 1105903 90814193 73468682137 124143001831 100431688481279