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18129002 = 2192916451
BaseRepresentation
bin100010100101…
…0000001101010
31021010001022112
41011022001222
514120112002
61444322322
7310044143
oct105120152
937101275
1018129002
11a262651
1260a33a2
1339a9928
14259caca
1518d1852
hex114a06a

18129002 has 16 divisors (see below), whose sum is σ = 29613600. Its totient is φ = 8290800.

The previous prime is 18128993. The next prime is 18129071. The reversal of 18129002 is 20092181.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7124 + ... + 9327.

It is an arithmetic number, because the mean of its divisors is an integer number (1850850).

Almost surely, 218129002 is an apocalyptic number.

18129002 is a deficient number, since it is larger than the sum of its proper divisors (11484598).

18129002 is a wasteful number, since it uses less digits than its factorization.

18129002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16501.

The product of its (nonzero) digits is 288, while the sum is 23.

The square root of 18129002 is about 4257.8165766036. The cubic root of 18129002 is about 262.6987254053.

The spelling of 18129002 in words is "eighteen million, one hundred twenty-nine thousand, two".

Divisors: 1 2 19 29 38 58 551 1102 16451 32902 312569 477079 625138 954158 9064501 18129002