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31144201043 = 297314711479
BaseRepresentation
bin11101000000010101…
…101100101101010011
32222101111022100010112
4131000111230231103
51002240403413133
622150224151535
72151532224644
oct350025545523
988344270115
1031144201043
11122320a922a
1260521685ab
132c24450837
1417163b16cb
15c242e1648
hex74056cb53

31144201043 has 8 divisors (see below), whose sum is σ = 32659485600. Its totient is φ = 29658339648.

The previous prime is 31144201013. The next prime is 31144201051. The reversal of 31144201043 is 34010244113.

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 31144201043 - 212 = 31144196947 is a prime.

It is a super-2 number, since 2×311442010432 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31144201003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7353623 + ... + 7357856.

It is an arithmetic number, because the mean of its divisors is an integer number (4082435700).

Almost surely, 231144201043 is an apocalyptic number.

31144201043 is a deficient number, since it is larger than the sum of its proper divisors (1515284557).

31144201043 is a wasteful number, since it uses less digits than its factorization.

31144201043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14711581.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 31144201043 its reverse (34010244113), we get a palindrome (65154445156).

The spelling of 31144201043 in words is "thirty-one billion, one hundred forty-four million, two hundred one thousand, forty-three".

Divisors: 1 29 73 2117 14711479 426632891 1073937967 31144201043