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19268193 = 377112923
BaseRepresentation
bin100100110000…
…0001001100001
31100020220222210
41021200021201
514413040233
61524552333
7322530330
oct111401141
940226883
1019268193
11a97052a
1265526a9
133cb82c9
1427b7d17
151a59163
hex1260261

19268193 has 16 divisors (see below), whose sum is σ = 29776896. Its totient is φ = 10854480.

The previous prime is 19268189. The next prime is 19268213. The reversal of 19268193 is 39186291.

19268193 is nontrivially palindromic in base 4.

It is not a de Polignac number, because 19268193 - 22 = 19268189 is a prime.

It is a super-2 number, since 2×192681932 = 742526522970498, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (19268153) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4971 + ... + 7952.

It is an arithmetic number, because the mean of its divisors is an integer number (1861056).

Almost surely, 219268193 is an apocalyptic number.

It is an amenable number.

19268193 is a deficient number, since it is larger than the sum of its proper divisors (10508703).

19268193 is a wasteful number, since it uses less digits than its factorization.

19268193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13004.

The product of its digits is 23328, while the sum is 39.

The square root of 19268193 is about 4389.5549888343. The cubic root of 19268193 is about 268.0898237931.

The spelling of 19268193 in words is "nineteen million, two hundred sixty-eight thousand, one hundred ninety-three".

Divisors: 1 3 7 21 71 213 497 1491 12923 38769 90461 271383 917533 2752599 6422731 19268193