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3813253 = 17224309
BaseRepresentation
bin1110100010111110000101
321011201210121
432202332011
51434011003
6213421541
744261233
oct16427605
97151717
103813253
112174a54
12133a8b1
13a36882
14713953
15504cbd
hex3a2f85

3813253 has 4 divisors (see below), whose sum is σ = 4037580. Its totient is φ = 3588928.

The previous prime is 3813233. The next prime is 3813289. The reversal of 3813253 is 3523183.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3523183 = 10134883.

It can be written as a sum of positive squares in 2 ways, for example, as 2169729 + 1643524 = 1473^2 + 1282^2 .

It is a cyclic number.

It is not a de Polignac number, because 3813253 - 25 = 3813221 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 (3813223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 112138 + ... + 112171.

It is an arithmetic number, because the mean of its divisors is an integer number (1009395).

Almost surely, 23813253 is an apocalyptic number.

It is an amenable number.

3813253 is a deficient number, since it is larger than the sum of its proper divisors (224327).

3813253 is a wasteful number, since it uses less digits than its factorization.

3813253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224326.

The product of its digits is 2160, while the sum is 25.

The square root of 3813253 is about 1952.7552329977. The cubic root of 3813253 is about 156.2302784709.

The spelling of 3813253 in words is "three million, eight hundred thirteen thousand, two hundred fifty-three".

Divisors: 1 17 224309 3813253