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289177428892 = 221119919329947
BaseRepresentation
bin1000011010101000101…
…00010110001110011100
31000122102021100110012011
410031110110112032130
514214213410211032
6340502443521004
726615041406032
oct4152424261634
91018367313164
10289177428892
11101704135460
1248064b29164
13213668b7a91
14ddd3a5a552
1577c74bb247
hex435451639c

289177428892 has 24 divisors (see below), whose sum is σ = 552095389440. Its totient is φ = 131437288560.

The previous prime is 289177428889. The next prime is 289177428899. The reversal of 289177428892 is 298824771982.

It is a hoax number, since the sum of its digits (67) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289177428899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 711463 + ... + 1041409.

It is an arithmetic number, because the mean of its divisors is an integer number (23003974560).

Almost surely, 2289177428892 is an apocalyptic number.

289177428892 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

289177428892 is a deficient number, since it is larger than the sum of its proper divisors (262917960548).

289177428892 is a wasteful number, since it uses less digits than its factorization.

289177428892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349881 (or 349879 counting only the distinct ones).

The product of its digits is 65028096, while the sum is 67.

The spelling of 289177428892 in words is "two hundred eighty-nine billion, one hundred seventy-seven million, four hundred twenty-eight thousand, eight hundred ninety-two".

Divisors: 1 2 4 11 22 44 19919 39838 79676 219109 329947 438218 659894 876436 1319788 3629417 7258834 14517668 6572214293 13144428586 26288857172 72294357223 144588714446 289177428892