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BaseRepresentation
bin1110000111001001110111…
…11111001110100011101000
311001212122101112212200202112
413003210323333032203220
513031412313124102130
6145555545355421452
76351666325352315
oct703447377164350
9131778345780675
1031032145144040
119984727a22497
1235922a2754888
13144141b335a81
14793d6cab9d0c
1538c33d64c495
hex1c393bfce8e8

31032145144040 has 64 divisors (see below), whose sum is σ = 71310938284800. Its totient is φ = 12148238423808.

The previous prime is 31032145144019. The next prime is 31032145144069. The reversal of 31032145144040 is 4044154123013.

It is a junction number, because it is equal to n+sod(n) for n = 31032145143988 and 31032145144006.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45493982 + ... + 46171058.

It is an arithmetic number, because the mean of its divisors is an integer number (1114233410700).

Almost surely, 231032145144040 is an apocalyptic number.

It is an amenable number.

31032145144040 is an abundant number, since it is smaller than the sum of its proper divisors (40278793140760).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31032145144040 is a wasteful number, since it uses less digits than its factorization.

31032145144040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 701514 (or 701510 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 32.

Adding to 31032145144040 its reverse (4044154123013), we get a palindrome (35076299267053).

The spelling of 31032145144040 in words is "thirty-one trillion, thirty-two billion, one hundred forty-five million, one hundred forty-four thousand, forty".