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181414664031 = 3719269331231
BaseRepresentation
bin1010100011110100101…
…0000001011101011111
3122100021002200210110210
42220331022001131133
510433014123222111
6215201333503503
716051424126016
oct2507512013537
9570232623423
10181414664031
116aa34937207
122b1ab4a1b93
1314151a58763
148acda47a7d
154abb9e80a6
hex2a3d28175f

181414664031 has 16 divisors (see below), whose sum is σ = 242320343040. Its totient is φ = 120726185760.

The previous prime is 181414663987. The next prime is 181414664063. The reversal of 181414664031 is 130466414181.

It is not a de Polignac number, because 181414664031 - 210 = 181414663007 is a prime.

It is a super-2 number, since 2×1814146640312 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (181414664131) 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, 5793186 + ... + 5824416.

It is an arithmetic number, because the mean of its divisors is an integer number (15145021440).

Almost surely, 2181414664031 is an apocalyptic number.

181414664031 is a deficient number, since it is larger than the sum of its proper divisors (60905679009).

181414664031 is a wasteful number, since it uses less digits than its factorization.

181414664031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34646.

The product of its (nonzero) digits is 55296, while the sum is 39.

The spelling of 181414664031 in words is "one hundred eighty-one billion, four hundred fourteen million, six hundred sixty-four thousand, thirty-one".

Divisors: 1 3 719 2157 2693 8079 31231 93693 1936267 5808801 22455089 67365267 84105083 252315249 60471554677 181414664031