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31412302223 = 241130341503
BaseRepresentation
bin11101010000010100…
…011011000110001111
310000002011210021210212
4131100110123012033
51003313022132343
622233002353035
72161266110021
oct352024330617
9100064707725
1031412302223
111235a475655
126107abb77b
132c67b602a3
14173dc40011
15c3caedc18
hex75051b18f

31412302223 has 4 divisors (see below), whose sum is σ = 31542643968. Its totient is φ = 31281960480.

The previous prime is 31412302213. The next prime is 31412302247. The reversal of 31412302223 is 32220321413.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32220321413 = 74602903059.

It is a cyclic number.

It is not a de Polignac number, because 31412302223 - 232 = 27117334927 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 (31412302213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65170511 + ... + 65170992.

It is an arithmetic number, because the mean of its divisors is an integer number (7885660992).

Almost surely, 231412302223 is an apocalyptic number.

31412302223 is a deficient number, since it is larger than the sum of its proper divisors (130341745).

31412302223 is a wasteful number, since it uses less digits than its factorization.

31412302223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130341744.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 31412302223 its reverse (32220321413), we get a palindrome (63632623636).

The spelling of 31412302223 in words is "thirty-one billion, four hundred twelve million, three hundred two thousand, two hundred twenty-three".

Divisors: 1 241 130341503 31412302223