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181882039106 = 2129959699767
BaseRepresentation
bin1010100101100100000…
…0111010101101000010
3122101110200010220112202
42221121000322231002
510434443300222411
6215315551153202
716066130552405
oct2513100725502
9571420126482
10181882039106
117015473aaa9
122b2bbb15802
13141c7829b61
148b35b49d3c
154ae7a6983b
hex2a5903ab42

181882039106 has 8 divisors (see below), whose sum is σ = 272825547840. Its totient is φ = 90940189828.

The previous prime is 181882039069. The next prime is 181882039117. The reversal of 181882039106 is 601930288181.

181882039106 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1818820391062 (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89966 + ... + 609801.

It is an arithmetic number, because the mean of its divisors is an integer number (34103193480).

Almost surely, 2181882039106 is an apocalyptic number.

181882039106 is a deficient number, since it is larger than the sum of its proper divisors (90943508734).

181882039106 is a wasteful number, since it uses less digits than its factorization.

181882039106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 829728.

The product of its (nonzero) digits is 165888, while the sum is 47.

The spelling of 181882039106 in words is "one hundred eighty-one billion, eight hundred eighty-two million, thirty-nine thousand, one hundred six".

Divisors: 1 2 129959 259918 699767 1399534 90941019553 181882039106