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13020203 = 711871567
BaseRepresentation
bin110001101010…
…110000101011
3220111111100202
4301222300223
511313121303
61143022415
7215445530
oct61526053
926444322
1013020203
1173932a9
12443aa0b
13290b481
141a2cd87
151222c88
hexc6ac2b

13020203 has 8 divisors (see below), whose sum is σ = 14902272. Its totient is φ = 11143656.

The previous prime is 13020197. The next prime is 13020209. The reversal of 13020203 is 30202031.

13020203 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (13020197) and next prime (13020209).

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 13020203 - 28 = 13019947 is a prime.

It is a super-2 number, since 2×130202032 = 339051372322418, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13020209) 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, 7526 + ... + 9092.

It is an arithmetic number, because the mean of its divisors is an integer number (1862784).

Almost surely, 213020203 is an apocalyptic number.

13020203 is a deficient number, since it is larger than the sum of its proper divisors (1882069).

13020203 is a wasteful number, since it uses less digits than its factorization.

13020203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2761.

The product of its (nonzero) digits is 36, while the sum is 11.

The square root of 13020203 is about 3608.3518398294. The cubic root of 13020203 is about 235.2552108942.

Adding to 13020203 its reverse (30202031), we get a palindrome (43222234).

The spelling of 13020203 in words is "thirteen million, twenty thousand, two hundred three".

Divisors: 1 7 1187 1567 8309 10969 1860029 13020203