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131233311200 = 2552164041639
BaseRepresentation
bin111101000111000011…
…1010110100111100000
3110112201212121221112102
41322032013112213200
54122231211424300
6140142053145532
712324040511555
oct1721607264740
9415655557472
10131233311200
1150723868092
122152592b2a8
13c4b5560184
1464cd1caa2c
15363127e0d5
hex1e8e1d69e0

131233311200 has 36 divisors (see below), whose sum is σ = 320373322920. Its totient is φ = 52493324160.

The previous prime is 131233311161. The next prime is 131233311211. The reversal of 131233311200 is 2113332131.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 82020020 + ... + 82021619.

It is an arithmetic number, because the mean of its divisors is an integer number (8899258970).

Almost surely, 2131233311200 is an apocalyptic number.

131233311200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131233311200 is an abundant number, since it is smaller than the sum of its proper divisors (189140011720).

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

131233311200 is a wasteful number, since it uses less digits than its factorization.

131233311200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164041659 (or 164041646 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 131233311200 its reverse (2113332131), we get a palindrome (133346643331).

The spelling of 131233311200 in words is "one hundred thirty-one billion, two hundred thirty-three million, three hundred eleven thousand, two hundred".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 80 100 160 200 400 800 164041639 328083278 656166556 820208195 1312333112 1640416390 2624666224 3280832780 4101040975 5249332448 6561665560 8202081950 13123331120 16404163900 26246662240 32808327800 65616655600 131233311200