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131202223004442 = 23233314853359183
BaseRepresentation
bin11101110101001111100101…
…111001010101101100011010
3122012112210212111200201120010
4131311033211321111230122
5114144104123042120232
61143013245201142350
736431022252505152
oct3565174571255432
9565483774621503
10131202223004442
11388946064a6477
121286ba5302a9b6
135829416597325
142458315a31762
151027d0e4e70cc
hex7753e5e55b1a

131202223004442 has 64 divisors (see below), whose sum is σ = 274650865053696. Its totient is φ = 41704646364480.

The previous prime is 131202223004407. The next prime is 131202223004449. The reversal of 131202223004442 is 244400322202131.

It is not an unprimeable number, because it can be changed into a prime (131202223004449) 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, 2216860783 + ... + 2216919965.

It is an arithmetic number, because the mean of its divisors is an integer number (4291419766464).

Almost surely, 2131202223004442 is an apocalyptic number.

131202223004442 is an abundant number, since it is smaller than the sum of its proper divisors (143448642049254).

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

131202223004442 is a wasteful number, since it uses less digits than its factorization.

131202223004442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108075.

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 131202223004442 its reverse (244400322202131), we get a palindrome (375602545206573).

The spelling of 131202223004442 in words is "one hundred thirty-one trillion, two hundred two billion, two hundred twenty-three million, four thousand, four hundred forty-two".

Divisors: 1 2 3 6 23 46 69 138 331 662 993 1986 7613 15226 22839 45678 48533 59183 97066 118366 145599 177549 291198 355098 1116259 1361209 2232518 2722418 3348777 4083627 6697554 8167254 16064423 19589573 32128846 39179146 48193269 58768719 96386538 117537438 369481729 450560179 738963458 901120358 1108445187 1351680537 2216890374 2703361074 2872328539 5744657078 8616985617 17233971234 66063556397 132127112794 198190669191 396381338382 950740746409 1901481492818 2852222239227 5704444478454 21867037167407 43734074334814 65601111502221 131202223004442