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31332413109 = 310444137703
BaseRepresentation
bin11101001011100011…
…101010111010110101
32222212121110111112210
4131023203222322311
51003132044204414
622221030204033
72156306055114
oct351343527265
988777414483
1031332413109
111231936a798
1260a51b3619
132c5443b51a
1417333a5c7b
15c35abce59
hex74b8eaeb5

31332413109 has 4 divisors (see below), whose sum is σ = 41776550816. Its totient is φ = 20888275404.

The previous prime is 31332413107. The next prime is 31332413117. The reversal of 31332413109 is 90131423313.

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 not a de Polignac number, because 31332413109 - 21 = 31332413107 is a prime.

It is a super-2 number, since 2×313324131092 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31332413107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5222068849 + ... + 5222068854.

It is an arithmetic number, because the mean of its divisors is an integer number (10444137704).

Almost surely, 231332413109 is an apocalyptic number.

It is an amenable number.

31332413109 is a deficient number, since it is larger than the sum of its proper divisors (10444137707).

31332413109 is a wasteful number, since it uses less digits than its factorization.

31332413109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10444137706.

The product of its (nonzero) digits is 5832, while the sum is 30.

The spelling of 31332413109 in words is "thirty-one billion, three hundred thirty-two million, four hundred thirteen thousand, one hundred nine".

Divisors: 1 3 10444137703 31332413109