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23122230 = 235770741
BaseRepresentation
bin101100000110…
…1000100110110
31121111201201220
41120031010312
521404402410
62143331210
7400351515
oct130150466
947451656
1023122230
111206308a
1278b0b06
134a375c1
1430dc67c
15206b070
hex160d136

23122230 has 16 divisors (see below), whose sum is σ = 55493424. Its totient is φ = 6165920.

The previous prime is 23122219. The next prime is 23122241. The reversal of 23122230 is 3222132.

It is an interprime number because it is at equal distance from previous prime (23122219) and next prime (23122241).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

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, 385341 + ... + 385400.

It is an arithmetic number, because the mean of its divisors is an integer number (3468339).

Almost surely, 223122230 is an apocalyptic number.

23122230 is an abundant number, since it is smaller than the sum of its proper divisors (32371194).

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

23122230 is a wasteful number, since it uses less digits than its factorization.

23122230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 770751.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 23122230 is about 4808.5579959069. The cubic root of 23122230 is about 284.8895848060.

Adding to 23122230 its reverse (3222132), we get a palindrome (26344362).

The spelling of 23122230 in words is "twenty-three million, one hundred twenty-two thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 770741 1541482 2312223 3853705 4624446 7707410 11561115 23122230