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131115314305250 = 25311412634421617
BaseRepresentation
bin11101110011111110101001…
…101110111101100011100010
3122012020111112200122100221022
4131303332221232331203202
5114141143130430232000
61142505313250125442
736421524500655332
oct3563765156754342
9565214480570838
10131115314305250
1138860768835440
1212857039580882
135821176045632
14245402d5050c2
151025924746585
hex773fa9bbd8e2

131115314305250 has 128 divisors (see below), whose sum is σ = 275335072556544. Its totient is φ = 46338535680000.

The previous prime is 131115314305177. The next prime is 131115314305361. The reversal of 131115314305250 is 52503413511131.

It is a self number, because there is not a number n which added to its sum of digits gives 131115314305250.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 27442442 + ... + 31864058.

It is an arithmetic number, because the mean of its divisors is an integer number (2151055254348).

Almost surely, 2131115314305250 is an apocalyptic number.

131115314305250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131115314305250 is an abundant number, since it is smaller than the sum of its proper divisors (144219758251294).

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

131115314305250 is a wasteful number, since it uses less digits than its factorization.

131115314305250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4421949 (or 4421939 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 35.

Adding to 131115314305250 its reverse (52503413511131), we get a palindrome (183618727816381).

The spelling of 131115314305250 in words is "one hundred thirty-one trillion, one hundred fifteen billion, three hundred fourteen million, three hundred five thousand, two hundred fifty".

Divisors: 1 2 5 10 11 22 25 41 50 55 82 110 125 205 250 263 275 410 451 526 550 902 1025 1315 1375 2050 2255 2630 2750 2893 4510 5125 5786 6575 10250 10783 11275 13150 14465 21566 22550 28930 32875 53915 56375 65750 72325 107830 112750 118613 144650 237226 269575 361625 539150 593065 723250 1186130 1347875 2695750 2965325 4421617 5930650 8843234 14826625 22108085 29653250 44216170 48637787 97275574 110540425 181286297 221080850 243188935 362572594 486377870 552702125 906431485 1105404250 1162885271 1215944675 1812862970 1994149267 2325770542 2431889350 3988298534 4532157425 5814426355 6079723375 9064314850 9970746335 11628852710 12159446750 12791737981 19941492670 22660787125 25583475962 29072131775 45321574250 47678296111 49853731675 58144263550 63958689905 95356592222 99707463350 127917379810 145360658875 238391480555 249268658375 290721317750 319793449525 476782961110 498537316750 524461257221 639586899050 1048922514442 1191957402775 1598967247625 2383914805550 2622306286105 3197934495250 5244612572210 5959787013875 11919574027750 13111531430525 26223062861050 65557657152625 131115314305250