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31441011128 = 2317747221453
BaseRepresentation
bin11101010010000001…
…111100000110111000
310000011011210212000122
4131102001330012320
51003342344324003
622235505552412
72162065120322
oct352201740670
9100134725018
1031441011128
11123746a401a
126115645708
132c70aa26c7
141743994612
15c403c0238
hex75207c1b8

31441011128 has 16 divisors (see below), whose sum is σ = 58955483880. Its totient is φ = 15719548768.

The previous prime is 31441011073. The next prime is 31441011149. The reversal of 31441011128 is 82111014413.

It is a junction number, because it is equal to n+sod(n) for n = 31441011097 and 31441011106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31250 + ... + 252702.

Almost surely, 231441011128 is an apocalyptic number.

It is an amenable number.

31441011128 is a deficient number, since it is larger than the sum of its proper divisors (27514472752).

31441011128 is a wasteful number, since it uses less digits than its factorization.

31441011128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239206 (or 239202 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 26.

The spelling of 31441011128 in words is "thirty-one billion, four hundred forty-one million, eleven thousand, one hundred twenty-eight".

Divisors: 1 2 4 8 17747 35494 70988 141976 221453 442906 885812 1771624 3930126391 7860252782 15720505564 31441011128