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10440031311 = 321816408859
BaseRepresentation
bin10011011100100011…
…00011110001001111
3222221120202112121100
421232101203301033
5132340122000221
64443542034143
7516466542033
oct115621436117
928846675540
1010440031311
114478142056
122034418953
13ca4c06928
147107881c3
1541182c926
hex26e463c4f

10440031311 has 12 divisors (see below), whose sum is σ = 15163362760. Its totient is φ = 6921566640.

The previous prime is 10440031309. The next prime is 10440031367. The reversal of 10440031311 is 11313004401.

It is not a de Polignac number, because 10440031311 - 21 = 10440031309 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 (10440033311) 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, 3202801 + ... + 3206058.

Almost surely, 210440031311 is an apocalyptic number.

10440031311 is a deficient number, since it is larger than the sum of its proper divisors (4723331449).

10440031311 is a wasteful number, since it uses less digits than its factorization.

10440031311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6409046 (or 6409043 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 10440031311 its reverse (11313004401), we get a palindrome (21753035712).

The spelling of 10440031311 in words is "ten billion, four hundred forty million, thirty-one thousand, three hundred eleven".

Divisors: 1 3 9 181 543 1629 6408859 19226577 57679731 1160003479 3480010437 10440031311