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190812680169 = 3414573394579
BaseRepresentation
bin1011000110110101010…
…0100110111111101001
3200020112001201110222120
42301231110212333221
511111241021231134
6223354053541453
716533342006666
oct2615524467751
9606461643876
10190812680169
1173a178688a1
1230b92944889
1314cbbb04357
149341c68a6d
154e6bae5649
hex2c6d526fe9

190812680169 has 16 divisors (see below), whose sum is σ = 261192563520. Its totient is φ = 123834205440.

The previous prime is 190812680161. The next prime is 190812680171. The reversal of 190812680169 is 961086218091.

It is not a de Polignac number, because 190812680169 - 23 = 190812680161 is a prime.

It is a super-2 number, since 2×1908126801692 (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (190812680161) 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, 1641079 + ... + 1753500.

It is an arithmetic number, because the mean of its divisors is an integer number (16324535220).

Almost surely, 2190812680169 is an apocalyptic number.

It is an amenable number.

190812680169 is a deficient number, since it is larger than the sum of its proper divisors (70379883351).

190812680169 is a wasteful number, since it uses less digits than its factorization.

190812680169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3395080.

The product of its (nonzero) digits is 373248, while the sum is 51.

The spelling of 190812680169 in words is "one hundred ninety billion, eight hundred twelve million, six hundred eighty thousand, one hundred sixty-nine".

Divisors: 1 3 41 123 457 1371 18737 56211 3394579 10183737 139177739 417533217 1551322603 4653967809 63604226723 190812680169