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31000110044 = 2237209460203
BaseRepresentation
bin11100110111110000…
…000010001111011100
32222000110011202102212
4130313300002033130
51001442012010134
622124035535552
72145132405401
oct346760021734
988013152385
1031000110044
1112168832562
126011a5a5b8
132c006403a7
1417011c42a8
15c1682cbce
hex737c023dc

31000110044 has 12 divisors (see below), whose sum is σ = 55716414264. Its totient is φ = 15081134544.

The previous prime is 31000110017. The next prime is 31000110047. The reversal of 31000110044 is 44001100013.

It is a happy number.

It is a super-2 number, since 2×310001100442 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31000110047) 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, 104729954 + ... + 104730249.

It is an arithmetic number, because the mean of its divisors is an integer number (4643034522).

Almost surely, 231000110044 is an apocalyptic number.

It is an amenable number.

31000110044 is a deficient number, since it is larger than the sum of its proper divisors (24716304220).

31000110044 is a wasteful number, since it uses less digits than its factorization.

31000110044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209460244 (or 209460242 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 31000110044 its reverse (44001100013), we get a palindrome (75001210057).

The spelling of 31000110044 in words is "thirty-one billion, one hundred ten thousand, forty-four".

Divisors: 1 2 4 37 74 148 209460203 418920406 837840812 7750027511 15500055022 31000110044