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1312408038 = 23401545473
BaseRepresentation
bin100111000111001…
…1100000111100110
310101110112020101010
41032032130013212
510141434024123
6334121243050
744344166334
oct11616340746
93343466333
101312408038
11613902647
12307633486
1317bb90906
14c6430b54
157a341993
hex4e39c1e6

1312408038 has 16 divisors (see below), whose sum is σ = 2631366576. Its totient is φ = 436377600.

The previous prime is 1312407989. The next prime is 1312408063. The reversal of 1312408038 is 8308042131.

1312408038 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×13124080383 (a number of 28 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1312407996 and 1312408014.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 270331 + ... + 275142.

It is an arithmetic number, because the mean of its divisors is an integer number (164460411).

Almost surely, 21312408038 is an apocalyptic number.

1312408038 is an abundant number, since it is smaller than the sum of its proper divisors (1318958538).

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

1312408038 is a wasteful number, since it uses less digits than its factorization.

1312408038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 545879.

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 1312408038 is about 36227.1726470615. The cubic root of 1312408038 is about 1094.8542129881.

The spelling of 1312408038 in words is "one billion, three hundred twelve million, four hundred eight thousand, thirty-eight".

Divisors: 1 2 3 6 401 802 1203 2406 545473 1090946 1636419 3272838 218734673 437469346 656204019 1312408038