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31024313229 = 3713195981167
BaseRepresentation
bin11100111001001100…
…010111001110001101
32222002010201101222010
4130321030113032031
51002014211010404
622130302411433
72145545211540
oct347114271615
988063641863
1031024313229
1112180463798
126019b90b79
132c056659c0
1417044c4857
15c18a0e189
hex73931738d

31024313229 has 32 divisors (see below), whose sum is σ = 53591265280. Its totient is φ = 15503182272.

The previous prime is 31024313227. The next prime is 31024313279. The reversal of 31024313229 is 92231342013.

It is not a de Polignac number, because 31024313229 - 21 = 31024313227 is a prime.

It is a super-2 number, since 2×310243132292 (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31024313196 and 31024313205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31024313227) 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 31 ways as a sum of consecutive naturals, for example, 2985397 + ... + 2995770.

It is an arithmetic number, because the mean of its divisors is an integer number (1674727040).

Almost surely, 231024313229 is an apocalyptic number.

31024313229 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

It is an amenable number.

31024313229 is a deficient number, since it is larger than the sum of its proper divisors (22566952051).

31024313229 is a wasteful number, since it uses less digits than its factorization.

31024313229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5981209.

The product of its (nonzero) digits is 7776, while the sum is 30.

The spelling of 31024313229 in words is "thirty-one billion, twenty-four million, three hundred thirteen thousand, two hundred twenty-nine".

Divisors: 1 3 7 13 19 21 39 57 91 133 247 273 399 741 1729 5187 5981167 17943501 41868169 77755171 113642173 125604507 233265513 340926519 544286197 795495211 1477348249 1632858591 2386485633 4432044747 10341437743 31024313229