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103397291 = 1094991901
BaseRepresentation
bin1100010100110…
…11011110101011
321012120010102022
412022123132223
5202432203131
614132055055
72363601554
oct612333653
9235503368
10103397291
1153401a08
122a76448b
1318562c3a
14da3732b
15912637b
hex629b7ab

103397291 has 8 divisors (see below), whose sum is σ = 104610000. Its totient is φ = 102189600.

The previous prime is 103397269. The next prime is 103397303. The reversal of 103397291 is 192793301.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-103397291 is a prime.

It is a super-2 number, since 2×1033972912 = 21381999572277362, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (103397891) 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, 53441 + ... + 55341.

It is an arithmetic number, because the mean of its divisors is an integer number (13076250).

Almost surely, 2103397291 is an apocalyptic number.

103397291 is a deficient number, since it is larger than the sum of its proper divisors (1212709).

103397291 is a wasteful number, since it uses less digits than its factorization.

103397291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2509.

The product of its (nonzero) digits is 10206, while the sum is 35.

The square root of 103397291 is about 10168.4458497845. The cubic root of 103397291 is about 469.3567343009.

The spelling of 103397291 in words is "one hundred three million, three hundred ninety-seven thousand, two hundred ninety-one".

Divisors: 1 109 499 1901 54391 207209 948599 103397291