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131200231142 = 2131500764241
BaseRepresentation
bin111101000110000100…
…1001010011011100110
3110112122120101022020002
41322030021022123212
54122144224344032
6140134512141302
712323156364341
oct1721411123346
9415576338202
10131200231142
11507071235a2
1221516837832
13c4ab74a286
1464c8a59458
15362d3e7862
hex1e8c24a6e6

131200231142 has 8 divisors (see below), whose sum is σ = 198302639832. Its totient is φ = 65099351200.

The previous prime is 131200231111. The next prime is 131200231157. The reversal of 131200231142 is 241132002131.

131200231142 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 250381859 + ... + 250382382.

It is an arithmetic number, because the mean of its divisors is an integer number (24787829979).

Almost surely, 2131200231142 is an apocalyptic number.

131200231142 is a deficient number, since it is larger than the sum of its proper divisors (67102408690).

131200231142 is a wasteful number, since it uses less digits than its factorization.

131200231142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500764374.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 131200231142 its reverse (241132002131), we get a palindrome (372332233273).

The spelling of 131200231142 in words is "one hundred thirty-one billion, two hundred million, two hundred thirty-one thousand, one hundred forty-two".

Divisors: 1 2 131 262 500764241 1001528482 65600115571 131200231142