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31441340441 = 721409455401
BaseRepresentation
bin11101010010000011…
…001100100000011001
310000011012102120202102
4131102003030200121
51003342440343231
622235521013145
72162100661400
oct352203144031
9100135376672
1031441340441
11123748a9485
1261157841b5
132c70b89574
141743a3c637
15c40437acb
hex7520cc819

31441340441 has 12 divisors (see below), whose sum is σ = 36600658740. Its totient is φ = 26930534400.

The previous prime is 31441340431. The next prime is 31441340453. The reversal of 31441340441 is 14404314413.

It can be written as a sum of positive squares in 2 ways, for example, as 823690000 + 30617650441 = 28700^2 + 174979^2 .

It is a de Polignac number, because none of the positive numbers 2k-31441340441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31441340431) 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, 158660 + ... + 296741.

It is an arithmetic number, because the mean of its divisors is an integer number (3050054895).

Almost surely, 231441340441 is an apocalyptic number.

It is an amenable number.

31441340441 is a deficient number, since it is larger than the sum of its proper divisors (5159318299).

31441340441 is a wasteful number, since it uses less digits than its factorization.

31441340441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 456824 (or 456817 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 31441340441 its reverse (14404314413), we get a palindrome (45845654854).

The spelling of 31441340441 in words is "thirty-one billion, four hundred forty-one million, three hundred forty thousand, four hundred forty-one".

Divisors: 1 7 49 1409 9863 69041 455401 3187807 22314649 641660009 4491620063 31441340441