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23842430 = 253764439
BaseRepresentation
bin101101011110…
…0111001111110
31122212022122222
41122330321332
522100424210
62211005342
7406441313
oct132747176
948768588
1023842430
1112505197
127b99852
134c2a361
143248d0a
15215e655
hex16bce7e

23842430 has 16 divisors (see below), whose sum is σ = 44076960. Its totient is φ = 9279072.

The previous prime is 23842417. The next prime is 23842433. The reversal of 23842430 is 3424832.

It is a super-2 number, since 2×238424302 = 1136922936609800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 23842430.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23842433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31850 + ... + 32589.

It is an arithmetic number, because the mean of its divisors is an integer number (2754810).

Almost surely, 223842430 is an apocalyptic number.

23842430 is a deficient number, since it is larger than the sum of its proper divisors (20234530).

23842430 is a wasteful number, since it uses less digits than its factorization.

23842430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64483.

The product of its (nonzero) digits is 4608, while the sum is 26.

The square root of 23842430 is about 4882.8710816486. The cubic root of 23842430 is about 287.8172628708.

The spelling of 23842430 in words is "twenty-three million, eight hundred forty-two thousand, four hundred thirty".

Divisors: 1 2 5 10 37 74 185 370 64439 128878 322195 644390 2384243 4768486 11921215 23842430