Search a number
-
+
31010232229 = 67462839287
BaseRepresentation
bin11100111000010110…
…101001011110100101
32222001011020000110121
4130320112221132211
51002002104412404
622125040521541
72145314424214
oct347026513645
988034200417
1031010232229
11121735164a9
1260153202b1
132c02775752
14170269b07b
15c1767be54
hex7385a97a5

31010232229 has 4 divisors (see below), whose sum is σ = 31473071584. Its totient is φ = 30547392876.

The previous prime is 31010232217. The next prime is 31010232233. The reversal of 31010232229 is 92223201013.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 31010232229 - 215 = 31010199461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31010233229) 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 3 ways as a sum of consecutive naturals, for example, 231419577 + ... + 231419710.

It is an arithmetic number, because the mean of its divisors is an integer number (7868267896).

Almost surely, 231010232229 is an apocalyptic number.

It is an amenable number.

31010232229 is a deficient number, since it is larger than the sum of its proper divisors (462839355).

31010232229 is an equidigital number, since it uses as much as digits as its factorization.

31010232229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 462839354.

The product of its (nonzero) digits is 1296, while the sum is 25.

The spelling of 31010232229 in words is "thirty-one billion, ten million, two hundred thirty-two thousand, two hundred twenty-nine".

Divisors: 1 67 462839287 31010232229