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31130202032 = 2413934574049
BaseRepresentation
bin11100111111100000…
…010010111110110000
32222100111222010002122
4130333200102332300
51002223312431112
622145004133412
72151302231336
oct347740227660
988314863078
1031130202032
11122252075a6
126049537268
132c2158b9b7
1417145a9b56
15c22e78872
hex73f812fb0

31130202032 has 40 divisors (see below), whose sum is σ = 60781266000. Its totient is φ = 15444836352.

The previous prime is 31130202031. The next prime is 31130202043. The reversal of 31130202032 is 23020203113.

It is a super-3 number, since 3×311302020323 (a number of 32 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 31130202032.

It is not an unprimeable number, because it can be changed into a prime (31130202031) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 7686344 + ... + 7690392.

It is an arithmetic number, because the mean of its divisors is an integer number (1519531650).

Almost surely, 231130202032 is an apocalyptic number.

It is an amenable number.

31130202032 is a deficient number, since it is larger than the sum of its proper divisors (29651063968).

31130202032 is a wasteful number, since it uses less digits than its factorization.

31130202032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7653 (or 7647 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 31130202032 its reverse (23020203113), we get a palindrome (54150405145).

The spelling of 31130202032 in words is "thirty-one billion, one hundred thirty million, two hundred two thousand, thirty-two".

Divisors: 1 2 4 8 16 139 278 556 1112 2224 3457 4049 6914 8098 13828 16196 27656 32392 55312 64784 480523 562811 961046 1125622 1922092 2251244 3844184 4502488 7688368 9004976 13997393 27994786 55989572 111979144 223958288 1945637627 3891275254 7782550508 15565101016 31130202032