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31234223244 = 2237371835991
BaseRepresentation
bin11101000101101101…
…000110110010001100
32222121202200221101010
4131011231012302030
51002431430120434
622203201445220
72154004342230
oct350555066214
988552627333
1031234223244
11122789a5244
126078340810
132c39cac903
1417243265c0
15c2c1749e9
hex745b46c8c

31234223244 has 24 divisors (see below), whose sum is σ = 83291262208. Its totient is φ = 8924063760.

The previous prime is 31234223213. The next prime is 31234223347. The reversal of 31234223244 is 44232243213.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 185917912 + ... + 185918079.

Almost surely, 231234223244 is an apocalyptic number.

It is an amenable number.

31234223244 is an abundant number, since it is smaller than the sum of its proper divisors (52057038964).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31234223244 is a wasteful number, since it uses less digits than its factorization.

31234223244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371836005 (or 371836003 counting only the distinct ones).

The product of its digits is 27648, while the sum is 30.

Adding to 31234223244 its reverse (44232243213), we get a palindrome (75466466457).

The spelling of 31234223244 in words is "thirty-one billion, two hundred thirty-four million, two hundred twenty-three thousand, two hundred forty-four".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 371835991 743671982 1115507973 1487343964 2231015946 2602851937 4462031892 5205703874 7808555811 10411407748 15617111622 31234223244