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131360021600 = 2552164200027
BaseRepresentation
bin111101001010110101…
…0101101110001100000
3110120001201001111112012
41322111222231301200
54123011131142400
6140202421052052
712330136521623
oct1722552556140
9416051044465
10131360021600
1150789342525
1221560257028
13c505896542
146501d71dba
15363c45cd35
hex1e95aadc60

131360021600 has 36 divisors (see below), whose sum is σ = 320682654684. Its totient is φ = 52544008320.

The previous prime is 131360021591. The next prime is 131360021641. The reversal of 131360021600 is 6120063131.

It is a happy number.

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, 82099214 + ... + 82100813.

It is an arithmetic number, because the mean of its divisors is an integer number (8907851519).

Almost surely, 2131360021600 is an apocalyptic number.

131360021600 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131360021600 is an abundant number, since it is smaller than the sum of its proper divisors (189322633084).

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

131360021600 is a wasteful number, since it uses less digits than its factorization.

131360021600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164200047 (or 164200034 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 131360021600 its reverse (6120063131), we get a palindrome (137480084731).

The spelling of 131360021600 in words is "one hundred thirty-one billion, three hundred sixty million, twenty-one thousand, six hundred".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 80 100 160 200 400 800 164200027 328400054 656800108 821000135 1313600216 1642000270 2627200432 3284000540 4105000675 5254400864 6568001080 8210001350 13136002160 16420002700 26272004320 32840005400 65680010800 131360021600