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31144041223001 = 78776750692729
BaseRepresentation
bin1110001010011010010011…
…00000111001001101011001
311002021100012210002110111022
413011031021200321031121
513040230444023114001
6150123213001012225
76363040242341630
oct705151140711531
9132240183073438
1031144041223001
119a1812838a803
1235abb10484075
13144bb415c2895
14799545a26517
153901dbe2b11b
hex1c5349839359

31144041223001 has 8 divisors (see below), whose sum is σ = 35593596213120. Its totient is φ = 26694587793888.

The previous prime is 31144041222997. The next prime is 31144041223019. The reversal of 31144041223001 is 10032214044113.

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

It is not a de Polignac number, because 31144041223001 - 22 = 31144041222997 is a prime.

It is a super-2 number, since 2×311440412230012 (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31144041223091) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24731996 + ... + 25960733.

It is an arithmetic number, because the mean of its divisors is an integer number (4449199526640).

Almost surely, 231144041223001 is an apocalyptic number.

It is an amenable number.

31144041223001 is a deficient number, since it is larger than the sum of its proper divisors (4449554990119).

31144041223001 is an equidigital number, since it uses as much as digits as its factorization.

31144041223001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50780503.

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 31144041223001 its reverse (10032214044113), we get a palindrome (41176255267114).

The spelling of 31144041223001 in words is "thirty-one trillion, one hundred forty-four billion, forty-one million, two hundred twenty-three thousand, one".

Divisors: 1 7 87767 614369 50692729 354849103 4449148746143 31144041223001