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31030213132230 = 23513107743594851
BaseRepresentation
bin1110000111000110010001…
…10101001011111111000110
311001212110101220110022210120
413003203020311023333012
513031344334030212410
6145555025542002410
76351600415464654
oct703431065137706
9131773356408716
1031030213132230
1199839263a2414
123591a43716406
1314411a0ca4610
14793c2827bdd4
1538c278c19570
hex1c38c8d4bfc6

31030213132230 has 64 divisors (see below), whose sum is σ = 80950709968128. Its totient is φ = 7566821193600.

The previous prime is 31030213132159. The next prime is 31030213132253. The reversal of 31030213132230 is 3223131203013.

It is a self number, because there is not a number n which added to its sum of digits gives 31030213132230.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 371755696 + ... + 371839155.

It is an arithmetic number, because the mean of its divisors is an integer number (1264854843252).

Almost surely, 231030213132230 is an apocalyptic number.

31030213132230 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

31030213132230 is an abundant number, since it is smaller than the sum of its proper divisors (49920496835898).

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

31030213132230 is a wasteful number, since it uses less digits than its factorization.

31030213132230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 743594981.

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 31030213132230 its reverse (3223131203013), we get a palindrome (34253344335243).

The spelling of 31030213132230 in words is "thirty-one trillion, thirty billion, two hundred thirteen million, one hundred thirty-two thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 13 15 26 30 39 65 78 107 130 195 214 321 390 535 642 1070 1391 1605 2782 3210 4173 6955 8346 13910 20865 41730 743594851 1487189702 2230784553 3717974255 4461569106 7435948510 9666733063 11153922765 19333466126 22307845530 29000199189 48333665315 58000398378 79564649057 96667330630 145000995945 159129298114 238693947171 290001991890 397823245285 477387894342 795646490570 1034340437741 1193469735855 2068680875482 2386939471710 3103021313223 5171702188705 6206042626446 10343404377410 15515106566115 31030213132230