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18314123210 = 2529107590207
BaseRepresentation
bin10001000011100110…
…110101011111001010
31202021100020212001122
4101003212311133022
5300001403420320
612225143115242
71215561323135
oct210346653712
952240225048
1018314123210
117848932919
123671442b22
13195b3348c6
14c5a43921c
15722c56d25
hex4439b57ca

18314123210 has 32 divisors (see below), whose sum is σ = 34420930560. Its totient is φ = 7006925632.

The previous prime is 18314123203. The next prime is 18314123213. The reversal of 18314123210 is 1232141381.

It is a self number, because there is not a number n which added to its sum of digits gives 18314123210.

It is not an unprimeable number, because it can be changed into a prime (18314123213) 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, 264074 + ... + 326133.

It is an arithmetic number, because the mean of its divisors is an integer number (1075654080).

Almost surely, 218314123210 is an apocalyptic number.

18314123210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18314123210 is a deficient number, since it is larger than the sum of its proper divisors (16106807350).

18314123210 is a wasteful number, since it uses less digits than its factorization.

18314123210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 590350.

The product of its (nonzero) digits is 1152, while the sum is 26.

Adding to 18314123210 its reverse (1232141381), we get a palindrome (19546264591).

The spelling of 18314123210 in words is "eighteen billion, three hundred fourteen million, one hundred twenty-three thousand, two hundred ten".

Divisors: 1 2 5 10 29 58 107 145 214 290 535 1070 3103 6206 15515 31030 590207 1180414 2951035 5902070 17116003 34232006 63152149 85580015 126304298 171160030 315760745 631521490 1831412321 3662824642 9157061605 18314123210