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23045461 = 191212919
BaseRepresentation
bin101011111101…
…0010101010101
31121100211102121
41113322111111
521344423321
62141535541
7366611635
oct127722525
947324377
1023045461
111201043a
1278745b1
134a0b68a
1430bc6c5
152053441
hex15fa555

23045461 has 4 divisors (see below), whose sum is σ = 24258400. Its totient is φ = 21832524.

The previous prime is 23045441. The next prime is 23045467. The reversal of 23045461 is 16454032.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-23045461 is a prime.

It is a Duffinian number.

It is a zygodrome in base 4.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23045467) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 606441 + ... + 606478.

It is an arithmetic number, because the mean of its divisors is an integer number (6064600).

Almost surely, 223045461 is an apocalyptic number.

It is an amenable number.

23045461 is a deficient number, since it is larger than the sum of its proper divisors (1212939).

23045461 is a wasteful number, since it uses less digits than its factorization.

23045461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1212938.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 23045461 is about 4800.5688204628. The cubic root of 23045461 is about 284.5739442896.

Adding to 23045461 its reverse (16454032), we get a palindrome (39499493).

It can be divided in two parts, 23045 and 461, that multiplied together give a triangular number (10623745 = T4609).

The spelling of 23045461 in words is "twenty-three million, forty-five thousand, four hundred sixty-one".

Divisors: 1 19 1212919 23045461