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131973747941 = 7413461132863
BaseRepresentation
bin111101011101000111…
…1111001010011100101
3110121122110220000210102
41322322033321103211
54130240234413231
6140343343233445
712351301230350
oct1727217712345
9417573800712
10131973747941
1150a73816182
12216b18a8885
13c5a2a89b19
14655d68d297
15367628cacb
hex1eba3f94e5

131973747941 has 16 divisors (see below), whose sum is σ = 154551656448. Its totient is φ = 110328604800.

The previous prime is 131973747923. The next prime is 131973747959. The reversal of 131973747941 is 149747379131.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (131973747923) and next prime (131973747959).

It is a cyclic number.

It is not a de Polignac number, because 131973747941 - 218 = 131973485797 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131973747911) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 926876 + ... + 1059738.

It is an arithmetic number, because the mean of its divisors is an integer number (9659478528).

Almost surely, 2131973747941 is an apocalyptic number.

It is an amenable number.

131973747941 is a deficient number, since it is larger than the sum of its proper divisors (22577908507).

131973747941 is a wasteful number, since it uses less digits than its factorization.

131973747941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136372.

The product of its digits is 4000752, while the sum is 56.

The spelling of 131973747941 in words is "one hundred thirty-one billion, nine hundred seventy-three million, seven hundred forty-seven thousand, nine hundred forty-one".

Divisors: 1 7 41 287 3461 24227 132863 141901 930041 993307 5447383 38131681 459838843 3218871901 18853392563 131973747941