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131233302131200 = 295210252601729
BaseRepresentation
bin11101110101101100100010…
…010110110011001000000000
3122012122210002110112221112221
4131311230202112303020000
5114200111300321144300
61143035425142500424
736433202364643153
oct3565544226631000
9565583073487487
10131233302131200
11388a68048983a5
1212875a87434714
13582c32a3b2369
142459a23503c9a
151028a2cc3231a
hex775b225b3200

131233302131200 has 60 divisors (see below), whose sum is σ = 325140758663490. Its totient is φ = 52493320847360.

The previous prime is 131233302131177. The next prime is 131233302131209. The reversal of 131233302131200 is 2131203332131.

It can be written as a sum of positive squares in 3 ways, for example, as 124662405613824 + 6570896517376 = 11165232^2 + 2563376^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (131233302131209) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5126288065 + ... + 5126313664.

Almost surely, 2131233302131200 is an apocalyptic number.

131233302131200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131233302131200 is an abundant number, since it is smaller than the sum of its proper divisors (193907456532290).

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

131233302131200 is an equidigital number, since it uses as much as digits as its factorization.

131233302131200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10252601757 (or 10252601736 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 131233302131200 its reverse (2131203332131), we get a palindrome (133364505463331).

The spelling of 131233302131200 in words is "one hundred thirty-one trillion, two hundred thirty-three billion, three hundred two million, one hundred thirty-one thousand, two hundred".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 64 80 100 128 160 200 256 320 400 512 640 800 1280 1600 2560 3200 6400 12800 10252601729 20505203458 41010406916 51263008645 82020813832 102526017290 164041627664 205052034580 256315043225 328083255328 410104069160 512630086450 656166510656 820208138320 1025260172900 1312333021312 1640416276640 2050520345800 2624666042624 3280832553280 4101040691600 5249332085248 6561665106560 8202081383200 13123330213120 16404162766400 26246660426240 32808325532800 65616651065600 131233302131200