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214440004 = 22194168819
BaseRepresentation
bin11001100100000…
…01100001000100
3112221111200101101
430302001201010
5414344040004
633140105444
75212465342
oct1462014104
9487450341
10214440004
11100055a49
125b995284
1335571a9c
14206a0992
1513c5cba4
hexcc81844

214440004 has 24 divisors (see below), whose sum is σ = 404661600. Its totient is φ = 99097920.

The previous prime is 214439993. The next prime is 214440013. The reversal of 214440004 is 400044412.

It is a Harshad number since it is a multiple of its sum of digits (19).

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, 31294 + ... + 37525.

It is an arithmetic number, because the mean of its divisors is an integer number (16860900).

Almost surely, 2214440004 is an apocalyptic number.

It is an amenable number.

214440004 is a deficient number, since it is larger than the sum of its proper divisors (190221596).

214440004 is a wasteful number, since it uses less digits than its factorization.

214440004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68883 (or 68881 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 19.

The square root of 214440004 is about 14643.7701429652. The cubic root of 214440004 is about 598.5520678910.

Adding to 214440004 its reverse (400044412), we get a palindrome (614484416).

The spelling of 214440004 in words is "two hundred fourteen million, four hundred forty thousand, four".

Divisors: 1 2 4 19 38 41 76 82 164 779 1558 3116 68819 137638 275276 1307561 2615122 2821579 5230244 5643158 11286316 53610001 107220002 214440004