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131424431530 = 25715711958547
BaseRepresentation
bin111101001100110000…
…0011010110110101010
3110120020012020212100011
41322121200122312222
54123124123302110
6140213041402134
712331551143650
oct1723140326652
9416205225304
10131424431530
1150811735677
122157993934a
13c516028822
14650a73add0
153642e3248a
hex1e9981adaa

131424431530 has 32 divisors (see below), whose sum is σ = 272080884096. Its totient is φ = 44772796224.

The previous prime is 131424431513. The next prime is 131424431549. The reversal of 131424431530 is 35134424131.

It is a junction number, because it is equal to n+sod(n) for n = 131424431492 and 131424431501.

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 15 ways as a sum of consecutive naturals, for example, 5968284 + ... + 5990263.

It is an arithmetic number, because the mean of its divisors is an integer number (8502527628).

Almost surely, 2131424431530 is an apocalyptic number.

131424431530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131424431530 is an abundant number, since it is smaller than the sum of its proper divisors (140656452566).

131424431530 is a wasteful number, since it uses less digits than its factorization.

131424431530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11958718.

The product of its (nonzero) digits is 17280, while the sum is 31.

Adding to 131424431530 its reverse (35134424131), we get a palindrome (166558855661).

The spelling of 131424431530 in words is "one hundred thirty-one billion, four hundred twenty-four million, four hundred thirty-one thousand, five hundred thirty".

Divisors: 1 2 5 7 10 14 35 70 157 314 785 1099 1570 2198 5495 10990 11958547 23917094 59792735 83709829 119585470 167419658 418549145 837098290 1877491879 3754983758 9387459395 13142443153 18774918790 26284886306 65712215765 131424431530