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23061405 = 351537427
BaseRepresentation
bin101011111111…
…0001110011101
31121101122022010
41113332032131
521400431110
62142141433
7400006263
oct127761635
947348263
1023061405
1112021414
127881879
134a15a03
1430c4433
152058020
hex15fe39d

23061405 has 8 divisors (see below), whose sum is σ = 36898272. Its totient is φ = 12299408.

The previous prime is 23061359. The next prime is 23061407. The reversal of 23061405 is 50416032.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23061405 - 27 = 23061277 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23061407) 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, 768699 + ... + 768728.

It is an arithmetic number, because the mean of its divisors is an integer number (4612284).

Almost surely, 223061405 is an apocalyptic number.

It is an amenable number.

23061405 is a deficient number, since it is larger than the sum of its proper divisors (13836867).

23061405 is a wasteful number, since it uses less digits than its factorization.

23061405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1537435.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 23061405 is about 4802.2291698752. The cubic root of 23061405 is about 284.6395566461.

Adding to 23061405 its reverse (50416032), we get a palindrome (73477437).

The spelling of 23061405 in words is "twenty-three million, sixty-one thousand, four hundred five".

Divisors: 1 3 5 15 1537427 4612281 7687135 23061405