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214768144 = 2443833761
BaseRepresentation
bin11001100110100…
…01101000010000
3112222010100111201
430303101220100
5414440040034
633151120544
75215333123
oct1463215020
9488110451
10214768144
1110025a538
125bb13154
1335658256
14207483ba
1513cc5014
hexccd1a10

214768144 has 40 divisors (see below), whose sum is σ = 431034912. Its totient is φ = 103595520.

The previous prime is 214768109. The next prime is 214768189. The reversal of 214768144 is 441867412.

It is a happy number.

It is a super-2 number, since 2×2147681442 = 92250711354409472, which contains 22 as substring.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55224 + ... + 58984.

Almost surely, 2214768144 is an apocalyptic number.

It is an amenable number.

214768144 is an abundant number, since it is smaller than the sum of its proper divisors (216266768).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

214768144 is a wasteful number, since it uses less digits than its factorization.

214768144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3895 (or 3889 counting only the distinct ones).

The product of its digits is 43008, while the sum is 37.

The square root of 214768144 is about 14654.9699419685. The cubic root of 214768144 is about 598.8572173876.

The spelling of 214768144 in words is "two hundred fourteen million, seven hundred sixty-eight thousand, one hundred forty-four".

Divisors: 1 2 4 8 16 43 83 86 166 172 332 344 664 688 1328 3569 3761 7138 7522 14276 15044 28552 30088 57104 60176 161723 312163 323446 624326 646892 1248652 1293784 2497304 2587568 4994608 13423009 26846018 53692036 107384072 214768144