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131430250232 = 23179503182467
BaseRepresentation
bin111101001100111011…
…0100111011011111000
3110120020121012111002122
41322121312213123320
54123132121001412
6140213410220412
712331651460051
oct1723166473370
9416217174078
10131430250232
1150814a4a316
122157b884708
13c5172b5148
14650b413728
1536436d1572
hex1e99da76f8

131430250232 has 32 divisors (see below), whose sum is σ = 248302454400. Its totient is φ = 65217727584.

The previous prime is 131430250177. The next prime is 131430250319. The reversal of 131430250232 is 232052034131.

It is a happy number.

It is a super-2 number, since 2×1314302502322 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 629063 + ... + 811529.

It is an arithmetic number, because the mean of its divisors is an integer number (7759451700).

Almost surely, 2131430250232 is an apocalyptic number.

It is an amenable number.

131430250232 is a deficient number, since it is larger than the sum of its proper divisors (116872204168).

131430250232 is a wasteful number, since it uses less digits than its factorization.

131430250232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183155 (or 183151 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 26.

Adding to 131430250232 its reverse (232052034131), we get a palindrome (363482284363).

The spelling of 131430250232 in words is "one hundred thirty-one billion, four hundred thirty million, two hundred fifty thousand, two hundred thirty-two".

Divisors: 1 2 4 8 179 358 503 716 1006 1432 2012 4024 90037 180074 182467 360148 364934 720296 729868 1459736 32661593 65323186 91780901 130646372 183561802 261292744 367123604 734247208 16428781279 32857562558 65715125116 131430250232