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103193245 = 520638649
BaseRepresentation
bin1100010011010…
…01101010011101
321012011202112001
412021221222131
5202404140440
614123442301
72362061641
oct611515235
9235152461
10103193245
1153282681
122a686391
13184c10bc
14d9c2c21
1590d5b9a
hex6269a9d

103193245 has 4 divisors (see below), whose sum is σ = 123831900. Its totient is φ = 82554592.

The previous prime is 103193231. The next prime is 103193257. The reversal of 103193245 is 542391301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 542391301 = 1793030119.

It can be written as a sum of positive squares in 2 ways, for example, as 36264484 + 66928761 = 6022^2 + 8181^2 .

It is a cyclic number.

It is not a de Polignac number, because 103193245 - 217 = 103062173 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10319320 + ... + 10319329.

It is an arithmetic number, because the mean of its divisors is an integer number (30957975).

Almost surely, 2103193245 is an apocalyptic number.

It is an amenable number.

103193245 is a deficient number, since it is larger than the sum of its proper divisors (20638655).

103193245 is an equidigital number, since it uses as much as digits as its factorization.

103193245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20638654.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 103193245 is about 10158.4076015880. The cubic root of 103193245 is about 469.0477854212.

The spelling of 103193245 in words is "one hundred three million, one hundred ninety-three thousand, two hundred forty-five".

Divisors: 1 5 20638649 103193245