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213042424 = 2373804329
BaseRepresentation
bin11001011001011…
…00010011111000
3112211212200021011
430230230103320
5414014324144
633050123304
75164554640
oct1454542370
9484780234
10213042424
11aa290a21
125b420534
13351a290a
1420419520
1513a83a34
hexcb2c4f8

213042424 has 16 divisors (see below), whose sum is σ = 456519600. Its totient is φ = 91303872.

The previous prime is 213042413. The next prime is 213042433. The reversal of 213042424 is 424240312.

It is a happy number.

213042424 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 213042395 and 213042404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1902109 + ... + 1902220.

It is an arithmetic number, because the mean of its divisors is an integer number (28532475).

Almost surely, 2213042424 is an apocalyptic number.

It is an amenable number.

213042424 is an abundant number, since it is smaller than the sum of its proper divisors (243477176).

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

213042424 is a wasteful number, since it uses less digits than its factorization.

213042424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3804342 (or 3804338 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 213042424 is about 14595.9728692540. The cubic root of 213042424 is about 597.2489088118.

Adding to 213042424 its reverse (424240312), we get a palindrome (637282736).

The spelling of 213042424 in words is "two hundred thirteen million, forty-two thousand, four hundred twenty-four".

Divisors: 1 2 4 7 8 14 28 56 3804329 7608658 15217316 26630303 30434632 53260606 106521212 213042424