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131454925427 = 7294366122783
BaseRepresentation
bin111101001101101010…
…0101111101001110011
3110120022022122010002202
41322123110233221303
54123204430103202
6140220051133415
712332401300310
oct1723324575163
9416268563082
10131454925427
1150827973141
1221587ba426b
13c51c444557
1465107d7d07
153645957802
hex1e9b52fa73

131454925427 has 32 divisors (see below), whose sum is σ = 159276564480. Its totient is φ = 106094862720.

The previous prime is 131454925423. The next prime is 131454925439. The reversal of 131454925427 is 724529454131.

It is not a de Polignac number, because 131454925427 - 22 = 131454925423 is a prime.

It is a super-2 number, since 2×1314549254272 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131454925423) 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 31 ways as a sum of consecutive naturals, for example, 5758478 + ... + 5781260.

It is an arithmetic number, because the mean of its divisors is an integer number (4977392640).

Almost surely, 2131454925427 is an apocalyptic number.

131454925427 is a deficient number, since it is larger than the sum of its proper divisors (27821639053).

131454925427 is a wasteful number, since it uses less digits than its factorization.

131454925427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23523.

The product of its digits is 1209600, while the sum is 47.

The spelling of 131454925427 in words is "one hundred thirty-one billion, four hundred fifty-four million, nine hundred twenty-five thousand, four hundred twenty-seven".

Divisors: 1 7 29 43 203 301 661 1247 4627 8729 19169 22783 28423 134183 159481 198961 660707 824267 979669 4624949 5769869 6857683 15059563 28410401 105416941 198872807 436727327 647561209 3057091289 4532928463 18779275061 131454925427