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31032145144040 = 2354724379677077
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".

Divisors: 1 2 4 5 8 10 20 40 47 94 188 235 376 470 940 1880 24379 48758 97516 121895 195032 243790 487580 677077 975160 1145813 1354154 2291626 2708308 3385385 4583252 5416616 5729065 6770770 9166504 11458130 13541540 22916260 27083080 31822619 45832520 63645238 127290476 159113095 254580952 318226190 636452380 1272904760 16506460183 33012920366 66025840732 82532300915 132051681464 165064601830 330129203660 660258407320 775803628601 1551607257202 3103214514404 3879018143005 6206429028808 7758036286010 15516072572020 31032145144040