Search a number
-
+
131201130342320 = 24511875113810529
BaseRepresentation
bin11101110101001110100100…
…110001001010011110110000
3122012112201001100122201220122
4131311032210301022132300
5114144044403331423240
61143012544525425412
736430653214153253
oct3565164461123660
9565481040581818
10131201130342320
11388940a5743225
121286b7a910b268
1358292a10b55ac
14245825088309a
151027c986104b5
hex7753a4c4a7b0

131201130342320 has 40 divisors (see below), whose sum is σ = 305045218892160. Its totient is φ = 52480006400000.

The previous prime is 131201130342307. The next prime is 131201130342371. The reversal of 131201130342320 is 23243031102131.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 131201130342320.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2594816 + ... + 16405344.

It is an arithmetic number, because the mean of its divisors is an integer number (7626130472304).

Almost surely, 2131201130342320 is an apocalyptic number.

131201130342320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131201130342320 is an abundant number, since it is smaller than the sum of its proper divisors (173844088549840).

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

131201130342320 is a wasteful number, since it uses less digits than its factorization.

131201130342320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13929293 (or 13929287 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 131201130342320 its reverse (23243031102131), we get a palindrome (154444161444451).

The spelling of 131201130342320 in words is "one hundred thirty-one trillion, two hundred one billion, one hundred thirty million, three hundred forty-two thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 40 80 118751 237502 475004 593755 950008 1187510 1900016 2375020 4750040 9500080 13810529 27621058 55242116 69052645 110484232 138105290 220968464 276210580 552421160 1104842320 1640014129279 3280028258558 6560056517116 8200070646395 13120113034232 16400141292790 26240226068464 32800282585580 65600565171160 131201130342320