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1345405250 = 25372109829
BaseRepresentation
bin101000000110001…
…0100000101000010
310110202121200001002
41100030110011002
510223410432000
6341300412002
745224520200
oct12014240502
93422550032
101345405250
1163049a972
123166a7002
13185974ba7
14ca980070
157d1ad8d5
hex50314142

1345405250 has 48 divisors (see below), whose sum is σ = 2929825080. Its totient is φ = 461277600.

The previous prime is 1345405247. The next prime is 1345405289. The reversal of 1345405250 is 525045431.

It can be written as a sum of positive squares in 4 ways, for example, as 323388289 + 1022016961 = 17983^2 + 31969^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42665 + ... + 67164.

Almost surely, 21345405250 is an apocalyptic number.

1345405250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1345405250 is an abundant number, since it is smaller than the sum of its proper divisors (1584419830).

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

1345405250 is a wasteful number, since it uses less digits than its factorization.

1345405250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109860 (or 109843 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 29.

The square root of 1345405250 is about 36679.7662206291. The cubic root of 1345405250 is about 1103.9541574336.

The spelling of 1345405250 in words is "one billion, three hundred forty-five million, four hundred five thousand, two hundred fifty".

Divisors: 1 2 5 7 10 14 25 35 49 50 70 98 125 175 245 250 350 490 875 1225 1750 2450 6125 12250 109829 219658 549145 768803 1098290 1537606 2745725 3844015 5381621 5491450 7688030 10763242 13728625 19220075 26908105 27457250 38440150 53816210 96100375 134540525 192200750 269081050 672702625 1345405250