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131202102 = 23191114487
BaseRepresentation
bin1111101000111…
…11110000110110
3100010212202110010
413310133300312
5232041431402
621004041050
73152125263
oct764376066
9303782403
10131202102
1168073099
1237b33186
13212499a5
14135d426a
15b7b9a6c
hex7d1fc36

131202102 has 16 divisors (see below), whose sum is σ = 263780352. Its totient is φ = 43504680.

The previous prime is 131202089. The next prime is 131202139. The reversal of 131202102 is 201202131.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56098 + ... + 58389.

It is an arithmetic number, because the mean of its divisors is an integer number (16486272).

Almost surely, 2131202102 is an apocalyptic number.

131202102 is an abundant number, since it is smaller than the sum of its proper divisors (132578250).

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

131202102 is a wasteful number, since it uses less digits than its factorization.

131202102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114683.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 131202102 is about 11454.3486065337. The cubic root of 131202102 is about 508.1363507553.

Adding to 131202102 its reverse (201202131), we get a palindrome (332404233).

The spelling of 131202102 in words is "one hundred thirty-one million, two hundred two thousand, one hundred two".

Divisors: 1 2 3 6 191 382 573 1146 114487 228974 343461 686922 21867017 43734034 65601051 131202102