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31004221341 = 310334740447
BaseRepresentation
bin11100110111111111…
…101101111110011101
32222000201220122002010
4130313333231332131
51001444040040331
622124304021433
72145212350602
oct346777557635
988021818063
1031004221341
1112170090425
126013301879
132c0144c802
1417019746a9
15c16d90e46
hex737fedf9d

31004221341 has 4 divisors (see below), whose sum is σ = 41338961792. Its totient is φ = 20669480892.

The previous prime is 31004221331. The next prime is 31004221379. The reversal of 31004221341 is 14312240013.

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 31004221341 - 25 = 31004221309 is a prime.

It is a super-2 number, since 2×310042213412 (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 (31004221321) 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, 5167370221 + ... + 5167370226.

It is an arithmetic number, because the mean of its divisors is an integer number (10334740448).

Almost surely, 231004221341 is an apocalyptic number.

It is an amenable number.

31004221341 is a deficient number, since it is larger than the sum of its proper divisors (10334740451).

31004221341 is a wasteful number, since it uses less digits than its factorization.

31004221341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10334740450.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 31004221341 its reverse (14312240013), we get a palindrome (45316461354).

The spelling of 31004221341 in words is "thirty-one billion, four million, two hundred twenty-one thousand, three hundred forty-one".

Divisors: 1 3 10334740447 31004221341