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1345238907 = 34243105683
BaseRepresentation
bin101000000101110…
…1011011101111011
310110202022012212020
41100023223131323
510223340121112
6341253045523
745223225215
oct12013533573
93422265766
101345238907
116303969a1
123166268a3
1318591726c
14ca9395b5
157d17948c
hex502eb77b

1345238907 has 8 divisors (see below), whose sum is σ = 1794091584. Its totient is φ = 896606088.

The previous prime is 1345238903. The next prime is 1345238929. The reversal of 1345238907 is 7098325431.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1345238907 - 22 = 1345238903 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1345238903) 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, 40113 + ... + 65570.

It is an arithmetic number, because the mean of its divisors is an integer number (224261448).

Almost surely, 21345238907 is an apocalyptic number.

1345238907 is a deficient number, since it is larger than the sum of its proper divisors (448852677).

1345238907 is a wasteful number, since it uses less digits than its factorization.

1345238907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109929.

The product of its (nonzero) digits is 181440, while the sum is 42.

The square root of 1345238907 is about 36677.4986469906. The cubic root of 1345238907 is about 1103.9086587223.

The spelling of 1345238907 in words is "one billion, three hundred forty-five million, two hundred thirty-eight thousand, nine hundred seven".

Divisors: 1 3 4243 12729 105683 317049 448412969 1345238907