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131244320312200 = 235230791297916421
BaseRepresentation
bin11101110101110110110011…
…000101110100101110001000
3122012200211112100012112102201
4131311312303011310232020
5114200301331444442300
61143044450340405544
736434042414640634
oct3565666305645610
9565624470175381
10131244320312200
1138900449313907
12128780413a68b4
1358303950041a4
14245a38a987dc4
151028e751b366a
hex775db3174b88

131244320312200 has 96 divisors (see below), whose sum is σ = 305284257432000. Its totient is φ = 52473438662400.

The previous prime is 131244320312197. The next prime is 131244320312293. The reversal of 131244320312200 is 2213023442131.

It is a super-2 number, since 2×1312443203122002 (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7992459990 + ... + 7992476410.

It is an arithmetic number, because the mean of its divisors is an integer number (3180044348250).

Almost surely, 2131244320312200 is an apocalyptic number.

131244320312200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131244320312200 is an abundant number, since it is smaller than the sum of its proper divisors (174039937119800).

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

131244320312200 is a wasteful number, since it uses less digits than its factorization.

131244320312200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32495 (or 32486 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 131244320312200 its reverse (2213023442131), we get a palindrome (133457343754331).

The spelling of 131244320312200 in words is "one hundred thirty-one trillion, two hundred forty-four billion, three hundred twenty million, three hundred twelve thousand, two hundred".

Divisors: 1 2 4 5 8 10 20 25 40 50 100 200 3079 6158 12316 12979 15395 16421 24632 25958 30790 32842 51916 61580 64895 65684 76975 82105 103832 123160 129790 131368 153950 164210 259580 307900 324475 328420 410525 519160 615800 648950 656840 821050 1297900 1642100 2595800 3284200 39962341 50560259 79924682 101120518 159849364 199811705 202241036 213128159 252801295 319698728 399623410 404482072 426256318 505602590 799246820 852512636 999058525 1011205180 1065640795 1264006475 1598493640 1705025272 1998117050 2022410360 2131281590 2528012950 3996234100 4262563180 5056025900 5328203975 7992468200 8525126360 10112051800 10656407950 21312815900 42625631800 656221601561 1312443203122 2624886406244 3281108007805 5249772812488 6562216015610 13124432031220 16405540039025 26248864062440 32811080078050 65622160156100 131244320312200