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18629030 = 257266129
BaseRepresentation
bin100011100010…
…0000110100110
31022001110020002
41013010012212
514232112110
61503141302
7314226020
oct107040646
938043202
1018629030
11a5742a2
1262a4832
133b233c4
14268d010
15197eaa5
hex11c41a6

18629030 has 16 divisors (see below), whose sum is σ = 38322720. Its totient is φ = 6387072.

The previous prime is 18629029. The next prime is 18629033. The reversal of 18629030 is 3092681.

It is a junction number, because it is equal to n+sod(n) for n = 18628984 and 18629002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18629033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 132995 + ... + 133134.

It is an arithmetic number, because the mean of its divisors is an integer number (2395170).

Almost surely, 218629030 is an apocalyptic number.

18629030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18629030 is an abundant number, since it is smaller than the sum of its proper divisors (19693690).

18629030 is a wasteful number, since it uses less digits than its factorization.

18629030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266143.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 18629030 is about 4316.1360034179. The cubic root of 18629030 is about 265.0920767016.

The spelling of 18629030 in words is "eighteen million, six hundred twenty-nine thousand, thirty".

Divisors: 1 2 5 7 10 14 35 70 266129 532258 1330645 1862903 2661290 3725806 9314515 18629030