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103105253 = 1311794397
BaseRepresentation
bin1100010010101…
…00001011100101
321012000021211002
412021110023211
5202343332003
614121523045
72361244256
oct611241345
9235007732
10103105253
1153222559
122a643485
1318490034
14d99cb2d
1590b9a88
hex62542e5

103105253 has 8 divisors (see below), whose sum is σ = 104496480. Its totient is φ = 101723440.

The previous prime is 103105231. The next prime is 103105291. The reversal of 103105253 is 352501301.

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

It is a cyclic number.

It is not a de Polignac number, because 103105253 - 220 = 102056677 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103105853) 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, 21251 + ... + 25647.

It is an arithmetic number, because the mean of its divisors is an integer number (13062060).

Almost surely, 2103105253 is an apocalyptic number.

It is an amenable number.

103105253 is a deficient number, since it is larger than the sum of its proper divisors (1391227).

103105253 is a wasteful number, since it uses less digits than its factorization.

103105253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4707.

The product of its (nonzero) digits is 450, while the sum is 20.

The square root of 103105253 is about 10154.0756841773. The cubic root of 103105253 is about 468.9144298280.

Adding to 103105253 its reverse (352501301), we get a palindrome (455606554).

The spelling of 103105253 in words is "one hundred three million, one hundred five thousand, two hundred fifty-three".

Divisors: 1 131 179 4397 23449 576007 787063 103105253