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31348202036 = 2229793420799
BaseRepresentation
bin11101001100011111…
…111001101000110100
32222220201011122212212
4131030133321220310
51003200114431121
622222352432552
72156560215014
oct351437715064
988821148785
1031348202036
1112327274198
1260aa548758
132c577a8c98
141735515c44
15c3718b25b
hex74c7f9a34

31348202036 has 24 divisors (see below), whose sum is σ = 57469440000. Its totient is φ = 14942045664.

The previous prime is 31348202033. The next prime is 31348202063. The reversal of 31348202036 is 63020284313.

It is a junction number, because it is equal to n+sod(n) for n = 31348201993 and 31348202011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31348202033) 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, 1701236 + ... + 1719563.

It is an arithmetic number, because the mean of its divisors is an integer number (2394560000).

Almost surely, 231348202036 is an apocalyptic number.

It is an amenable number.

31348202036 is a deficient number, since it is larger than the sum of its proper divisors (26121237964).

31348202036 is a wasteful number, since it uses less digits than its factorization.

31348202036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3420911 (or 3420909 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 32.

Adding to 31348202036 its reverse (63020284313), we get a palindrome (94368486349).

The spelling of 31348202036 in words is "thirty-one billion, three hundred forty-eight million, two hundred two thousand, thirty-six".

Divisors: 1 2 4 29 58 79 116 158 316 2291 4582 9164 3420799 6841598 13683196 99203171 198406342 270243121 396812684 540486242 1080972484 7837050509 15674101018 31348202036