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31224344099 = 132843984457
BaseRepresentation
bin11101000101000111…
…011010111000100011
32222121002010000201212
4131011013122320203
51002421413002344
622202210020335
72153524355114
oct350507327043
988532100655
1031224344099
1112273367963
126074b776ab
132c37c31070
141722cb420b
15c2b37279e
hex7451dae23

31224344099 has 8 divisors (see below), whose sum is σ = 33627797280. Its totient is φ = 28821116736.

The previous prime is 31224344087. The next prime is 31224344101. The reversal of 31224344099 is 99044342213.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31224344099 - 212 = 31224340003 is a prime.

It is a super-2 number, since 2×312243440992 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31224344009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 327479 + ... + 411935.

It is an arithmetic number, because the mean of its divisors is an integer number (4203474660).

Almost surely, 231224344099 is an apocalyptic number.

31224344099 is a deficient number, since it is larger than the sum of its proper divisors (2403453181).

31224344099 is a wasteful number, since it uses less digits than its factorization.

31224344099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112909.

The product of its (nonzero) digits is 186624, while the sum is 41.

The spelling of 31224344099 in words is "thirty-one billion, two hundred twenty-four million, three hundred forty-four thousand, ninety-nine".

Divisors: 1 13 28439 84457 369707 1097941 2401872623 31224344099