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25742230 = 252574223
BaseRepresentation
bin110001000110…
…0101110010110
31210102211200221
41202030232112
523042222410
62315424554
7431543143
oct142145626
953384627
1025742230
1113592578
12875515a
135443cb7
1435c13ca
1523d74da
hex188cb96

25742230 has 8 divisors (see below), whose sum is σ = 46336032. Its totient is φ = 10296888.

The previous prime is 25742179. The next prime is 25742237. The reversal of 25742230 is 3224752.

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

It is a junction number, because it is equal to n+sod(n) for n = 25742195 and 25742204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25742237) 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, 1287102 + ... + 1287121.

It is an arithmetic number, because the mean of its divisors is an integer number (5792004).

Almost surely, 225742230 is an apocalyptic number.

25742230 is a deficient number, since it is larger than the sum of its proper divisors (20593802).

25742230 is a wasteful number, since it uses less digits than its factorization.

25742230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2574230.

The product of its (nonzero) digits is 3360, while the sum is 25.

The square root of 25742230 is about 5073.6801239337. The cubic root of 25742230 is about 295.2673244726.

Adding to 25742230 its reverse (3224752), we get a palindrome (28966982).

The spelling of 25742230 in words is "twenty-five million, seven hundred forty-two thousand, two hundred thirty".

Divisors: 1 2 5 10 2574223 5148446 12871115 25742230