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19116207 = 3211193093
BaseRepresentation
bin100100011101…
…1000010101111
31022222012111200
41020323002233
514343204312
61521420543
7321325245
oct110730257
938865450
1019116207
11a877320
12649a753
133c64086
142778795
151a290dc
hex123b0af

19116207 has 12 divisors (see below), whose sum is σ = 30122664. Its totient is φ = 11585520.

The previous prime is 19116203. The next prime is 19116217. The reversal of 19116207 is 70261191.

It is not a de Polignac number, because 19116207 - 22 = 19116203 is a prime.

It is a nialpdrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19116203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 96448 + ... + 96645.

It is an arithmetic number, because the mean of its divisors is an integer number (2510222).

Almost surely, 219116207 is an apocalyptic number.

19116207 is a deficient number, since it is larger than the sum of its proper divisors (11006457).

19116207 is a wasteful number, since it uses less digits than its factorization.

19116207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193110 (or 193107 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 27.

The square root of 19116207 is about 4372.2084808481. The cubic root of 19116207 is about 267.3830717309.

Adding to 19116207 its reverse (70261191), we get a palindrome (89377398).

It can be divided in two parts, 1911 and 6207, that added together give a palindrome (8118).

The spelling of 19116207 in words is "nineteen million, one hundred sixteen thousand, two hundred seven".

Divisors: 1 3 9 11 33 99 193093 579279 1737837 2124023 6372069 19116207