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164218030 = 2571231293
BaseRepresentation
bin10011100100111…
…00010010101110
3102110000010210021
421302130102232
5314014434110
624143432354
74032554524
oct1162342256
9373003707
10164218030
1184773489
1246bb56ba
1328039642
1417b4a314
15e63c2da
hex9c9c4ae

164218030 has 16 divisors (see below), whose sum is σ = 299757024. Its totient is φ = 64761760.

The previous prime is 164218013. The next prime is 164218031. The reversal of 164218030 is 30812461.

164218030 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1642180302 = 53935122754161800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 164217986 and 164218004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164218031) 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, 114937 + ... + 116356.

It is an arithmetic number, because the mean of its divisors is an integer number (18734814).

Almost surely, 2164218030 is an apocalyptic number.

164218030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

164218030 is a deficient number, since it is larger than the sum of its proper divisors (135538994).

164218030 is a wasteful number, since it uses less digits than its factorization.

164218030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231371.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 164218030 is about 12814.7582887856. The cubic root of 164218030 is about 547.6128274662.

The spelling of 164218030 in words is "one hundred sixty-four million, two hundred eighteen thousand, thirty".

Divisors: 1 2 5 10 71 142 355 710 231293 462586 1156465 2312930 16421803 32843606 82109015 164218030