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181929092942 = 21929173954277
BaseRepresentation
bin1010100101101111010…
…0011010011101001110
3122101120221200111021102
42221123310122131032
510440042321433232
6215324351503102
716100241526532
oct2513364323516
9571527614242
10181929092942
1170179259273
122b313827a92
13142044c326c
148b3c0b7bc2
154aebc61662
hex2a5bd1a74e

181929092942 has 32 divisors (see below), whose sum is σ = 298879869600. Its totient is φ = 82724277888.

The previous prime is 181929092921. The next prime is 181929092951. The reversal of 181929092942 is 249290929181.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 286493 + ... + 667784.

It is an arithmetic number, because the mean of its divisors is an integer number (9339995925).

Almost surely, 2181929092942 is an apocalyptic number.

181929092942 is a deficient number, since it is larger than the sum of its proper divisors (116950776658).

181929092942 is a wasteful number, since it uses less digits than its factorization.

181929092942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 954500.

The product of its (nonzero) digits is 1679616, while the sum is 56.

The spelling of 181929092942 in words is "one hundred eighty-one billion, nine hundred twenty-nine million, ninety-two thousand, nine hundred forty-two".

Divisors: 1 2 19 29 38 58 173 346 551 1102 3287 5017 6574 10034 95323 190646 954277 1908554 18131263 27674033 36262526 55348066 165089921 330179842 525806627 1051613254 3136708499 4787607709 6273416998 9575215418 90964546471 181929092942