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31241224124 = 221115119923629
BaseRepresentation
bin11101000110000111…
…110011111110111100
32222122020212121202222
4131012013303332330
51002440223132444
622204011504512
72154121011035
oct350607637674
988566777688
1031241224124
11122819470a0
12607a758138
132c3b591346
141725229a8c
15c2caa8eee
hex7461f3fbc

31241224124 has 48 divisors (see below), whose sum is σ = 60341568000. Its totient is φ = 14035032000.

The previous prime is 31241224117. The next prime is 31241224163. The reversal of 31241224124 is 42142214213.

It is a junction number, because it is equal to n+sod(n) for n = 31241224093 and 31241224102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1310342 + ... + 1333970.

It is an arithmetic number, because the mean of its divisors is an integer number (1257116000).

Almost surely, 231241224124 is an apocalyptic number.

It is an amenable number.

31241224124 is a deficient number, since it is larger than the sum of its proper divisors (29100343876).

31241224124 is a wasteful number, since it uses less digits than its factorization.

31241224124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23994 (or 23992 counting only the distinct ones).

The product of its digits is 3072, while the sum is 26.

Adding to 31241224124 its reverse (42142214213), we get a palindrome (73383438337).

The spelling of 31241224124 in words is "thirty-one billion, two hundred forty-one million, two hundred twenty-four thousand, one hundred twenty-four".

Divisors: 1 2 4 11 22 44 151 199 302 398 604 796 1661 2189 3322 4378 6644 8756 23629 30049 47258 60098 94516 120196 259919 330539 519838 661078 1039676 1322156 3567979 4702171 7135958 9404342 14271916 18808684 39247769 51723881 78495538 103447762 156991076 206895524 710027821 1420055642 2840111284 7810306031 15620612062 31241224124