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31030212203032 = 2375382712641987
BaseRepresentation
bin1110000111000110010001…
…10001101001001000011000
311001212110101211201010011211
413003203020301221020120
513031344333310444112
6145555025510032504
76351600404544640
oct703431061511030
9131773354633154
1031030212203032
119983925918289
123591a43348734
1314411a0a3a6b3
14793c280b9520
1538c278ad40a7
hex1c38c8c69218

31030212203032 has 64 divisors (see below), whose sum is σ = 67829828094720. Its totient is φ = 13031965984128.

The previous prime is 31030212203017. The next prime is 31030212203041. The reversal of 31030212203032 is 23030221203013.

It is a junction number, because it is equal to n+sod(n) for n = 31030212202994 and 31030212203012.

It is a congruent number.

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, 3866458 + ... + 8775529.

It is an arithmetic number, because the mean of its divisors is an integer number (1059841063980).

Almost surely, 231030212203032 is an apocalyptic number.

It is an amenable number.

31030212203032 is an abundant number, since it is smaller than the sum of its proper divisors (36799615891688).

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

31030212203032 is a wasteful number, since it uses less digits than its factorization.

31030212203032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12642880 (or 12642876 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 31030212203032 its reverse (23030221203013), we get a palindrome (54060433406045).

The spelling of 31030212203032 in words is "thirty-one trillion, thirty billion, two hundred twelve million, two hundred three thousand, thirty-two".

Divisors: 1 2 4 7 8 14 28 53 56 106 212 371 424 742 827 1484 1654 2968 3308 5789 6616 11578 23156 43831 46312 87662 175324 306817 350648 613634 1227268 2454536 12641987 25283974 50567948 88493909 101135896 176987818 353975636 670025311 707951272 1340050622 2680101244 4690177177 5360202488 9380354354 10454923249 18760708708 20909846498 37521417416 41819692996 73184462743 83639385992 146368925486 292737850972 554110932197 585475701944 1108221864394 2216443728788 3878776525379 4432887457576 7757553050758 15515106101516 31030212203032