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31930638763341 = 3619371277145823
BaseRepresentation
bin1110100001010011011100…
…11000011000010101001101
311012001112120010010201011010
413100221232120120111031
513141122422010411331
6151524422152115433
76503624665201353
oct720515630302515
9135045503121133
1031930638763341
11a1a078717415a
1236b8456395b79
1314a807a9a7546
147c5645dbb7d3
153a58c87bde46
hex1d0a6e61854d

31930638763341 has 32 divisors (see below), whose sum is σ = 43352523260928. Its totient is φ = 20899255703040.

The previous prime is 31930638763333. The next prime is 31930638763391. The reversal of 31930638763341 is 14336783603913.

It is a happy number.

It is not a de Polignac number, because 31930638763341 - 23 = 31930638763333 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31930638763391) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 218895556 + ... + 219041378.

It is an arithmetic number, because the mean of its divisors is an integer number (1354766351904).

Almost surely, 231930638763341 is an apocalyptic number.

It is an amenable number.

31930638763341 is a deficient number, since it is larger than the sum of its proper divisors (11421884497587).

31930638763341 is a wasteful number, since it uses less digits than its factorization.

31930638763341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148101.

The product of its (nonzero) digits is 17635968, while the sum is 57.

The spelling of 31930638763341 in words is "thirty-one trillion, nine hundred thirty billion, six hundred thirty-eight million, seven hundred sixty-three thousand, three hundred forty-one".

Divisors: 1 3 61 183 937 1277 2811 3831 57157 77897 145823 171471 233691 437469 1196549 3589647 8895203 26685609 72989489 136636151 186215971 218968467 409908453 558647913 8334805211 11359174231 25004415633 34077522693 174484364827 523453094481 10643546254447 31930638763341