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17313138 = 232961841
BaseRepresentation
bin100001000001…
…0110101110010
31012120121011100
41002002311302
513413010023
61415025230
7300105423
oct102026562
935517140
1017313138
119855687
12596b216
13378247b
14242964a
1517bec43
hex1082d72

17313138 has 12 divisors (see below), whose sum is σ = 37511838. Its totient is φ = 5771040.

The previous prime is 17313113. The next prime is 17313143. The reversal of 17313138 is 83131371.

It can be written as a sum of positive squares in only one way, i.e., 13638249 + 3674889 = 3693^2 + 1917^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 480903 + ... + 480938.

Almost surely, 217313138 is an apocalyptic number.

17313138 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

17313138 is an abundant number, since it is smaller than the sum of its proper divisors (20198700).

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

17313138 is a wasteful number, since it uses less digits than its factorization.

17313138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 961849 (or 961846 counting only the distinct ones).

The product of its digits is 1512, while the sum is 27.

The square root of 17313138 is about 4160.9059109766. The cubic root of 17313138 is about 258.6973203684.

The spelling of 17313138 in words is "seventeen million, three hundred thirteen thousand, one hundred thirty-eight".

Divisors: 1 2 3 6 9 18 961841 1923682 2885523 5771046 8656569 17313138