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213242054 = 21910195507
BaseRepresentation
bin11001011010111…
…01000011000110
3112212020211002212
430231131003012
5414042221204
633054303422
75166345644
oct1455350306
9485224085
10213242054
11aa407a03
125b4b7b72
133524273c
142046c194
1513ac2c6e
hexcb5d0c6

213242054 has 16 divisors (see below), whose sum is σ = 337089600. Its totient is φ = 100891944.

The previous prime is 213242027. The next prime is 213242077. The reversal of 213242054 is 450242312.

It is a happy number.

213242054 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 35969 + ... + 41475.

It is an arithmetic number, because the mean of its divisors is an integer number (21068100).

Almost surely, 2213242054 is an apocalyptic number.

213242054 is a deficient number, since it is larger than the sum of its proper divisors (123847546).

213242054 is a wasteful number, since it uses less digits than its factorization.

213242054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6547.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 213242054 is about 14602.8097981176. The cubic root of 213242054 is about 597.4353999590.

Adding to 213242054 its reverse (450242312), we get a palindrome (663484366).

The spelling of 213242054 in words is "two hundred thirteen million, two hundred forty-two thousand, fifty-four".

Divisors: 1 2 19 38 1019 2038 5507 11014 19361 38722 104633 209266 5611633 11223266 106621027 213242054