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25703423 = 142917987
BaseRepresentation
bin110001000001…
…1001111111111
31210100212110122
41202003033333
523040002143
62314525155
7431322044
oct142031777
953325418
1025703423
11135663a9
1287367bb
13542c435
1435b11cb
1523cac68
hex18833ff

25703423 has 4 divisors (see below), whose sum is σ = 25722840. Its totient is φ = 25684008.

The previous prime is 25703413. The next prime is 25703429. The reversal of 25703423 is 32430752.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 25703423 - 222 = 21509119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25703392 and 25703401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25703429) 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, 7565 + ... + 10422.

It is an arithmetic number, because the mean of its divisors is an integer number (6430710).

Almost surely, 225703423 is an apocalyptic number.

25703423 is a deficient number, since it is larger than the sum of its proper divisors (19417).

25703423 is a wasteful number, since it uses less digits than its factorization.

25703423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19416.

The product of its (nonzero) digits is 5040, while the sum is 26.

The square root of 25703423 is about 5069.8543371580. The cubic root of 25703423 is about 295.1188757713.

The spelling of 25703423 in words is "twenty-five million, seven hundred three thousand, four hundred twenty-three".

Divisors: 1 1429 17987 25703423