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23019453 = 323182507
BaseRepresentation
bin101011111001…
…1111110111101
31121022111202100
41113303332331
521343110303
62141215313
7366443052
oct127637675
947274670
1023019453
1111aa2946
127861539
1349cc8a2
1430b3029
15204a8a3
hex15f3fbd

23019453 has 12 divisors (see below), whose sum is σ = 34323328. Its totient is φ = 14851080.

The previous prime is 23019443. The next prime is 23019463. The reversal of 23019453 is 35491032.

It is an interprime number because it is at equal distance from previous prime (23019443) and next prime (23019463).

It is not a de Polignac number, because 23019453 - 25 = 23019421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23019413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40975 + ... + 41532.

Almost surely, 223019453 is an apocalyptic number.

It is an amenable number.

23019453 is a deficient number, since it is larger than the sum of its proper divisors (11303875).

23019453 is a wasteful number, since it uses less digits than its factorization.

23019453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82544 (or 82541 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 23019453 is about 4797.8592101061. The cubic root of 23019453 is about 284.4668518329.

It can be divided in two parts, 230 and 19453, that added together give a 9-th power (19683 = 39).

The spelling of 23019453 in words is "twenty-three million, nineteen thousand, four hundred fifty-three".

Divisors: 1 3 9 31 93 279 82507 247521 742563 2557717 7673151 23019453