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940131131013 = 3531667122173
BaseRepresentation
bin11011010111001000010…
…11101001111010000101
310022212122100120202200000
431223210023221322011
5110400342032143023
61555520144511513
7124631216522334
oct15534413517205
93285570522600
10940131131013
11332786572578
1213225401b599
136a866a61b89
1433707169d1b
15196c57b7243
hexdae42e9e85

940131131013 has 24 divisors (see below), whose sum is σ = 1408318268448. Its totient is φ = 626729165424.

The previous prime is 940131131003. The next prime is 940131131021. The reversal of 940131131013 is 310131131049.

It is a happy number.

It is not a de Polignac number, because 940131131013 - 24 = 940131130997 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (940131131003) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7633995 + ... + 7756167.

It is an arithmetic number, because the mean of its divisors is an integer number (58679927852).

Almost surely, 2940131131013 is an apocalyptic number.

It is an amenable number.

940131131013 is a deficient number, since it is larger than the sum of its proper divisors (468187137435).

940131131013 is a wasteful number, since it uses less digits than its factorization.

940131131013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153855 (or 153843 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 27.

The spelling of 940131131013 in words is "nine hundred forty billion, one hundred thirty-one million, one hundred thirty-one thousand, thirteen".

Divisors: 1 3 9 27 81 243 31667 95001 122173 285003 366519 855009 1099557 2565027 3298671 7695081 9896013 29688039 3868852391 11606557173 34819671519 104459014557 313377043671 940131131013