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31305242024 = 237559022179
BaseRepresentation
bin11101001001111100…
…000001010110101000
32222210201100001211022
4131021330001112220
51003103120221044
622214215552012
72155526111120
oct351174012650
988721301738
1031305242024
1112304aa1751
12609808b608
132c4b917064
14172d931c80
15c335023ee
hex749f015a8

31305242024 has 16 divisors (see below), whose sum is σ = 67082661600. Its totient is φ = 13416532272.

The previous prime is 31305241951. The next prime is 31305242039. The reversal of 31305242024 is 42024250313.

It is a junction number, because it is equal to n+sod(n) for n = 31305241984 and 31305242002.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 279511034 + ... + 279511145.

It is an arithmetic number, because the mean of its divisors is an integer number (4192666350).

Almost surely, 231305242024 is an apocalyptic number.

It is an amenable number.

31305242024 is an abundant number, since it is smaller than the sum of its proper divisors (35777419576).

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

31305242024 is a wasteful number, since it uses less digits than its factorization.

31305242024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 559022192 (or 559022188 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 26.

Adding to 31305242024 its reverse (42024250313), we get a palindrome (73329492337).

The spelling of 31305242024 in words is "thirty-one billion, three hundred five million, two hundred forty-two thousand, twenty-four".

Divisors: 1 2 4 7 8 14 28 56 559022179 1118044358 2236088716 3913155253 4472177432 7826310506 15652621012 31305242024