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25678034 = 297132361
BaseRepresentation
bin110000111110…
…1000011010010
31210022120122022
41201331003102
523033144114
62314211442
7431155034
oct141750322
953276568
1025678034
1113549318
128723b82
135420a05
1435a5c54
1523c348e
hex187d0d2

25678034 has 8 divisors (see below), whose sum is σ = 38914428. Its totient is φ = 12706560.

The previous prime is 25678019. The next prime is 25678057. The reversal of 25678034 is 43087652.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 25030009 + 648025 = 5003^2 + 805^2 .

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

It is a super-2 number, since 2×256780342 = 1318722860210312, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 25677985 and 25678003.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65987 + ... + 66374.

Almost surely, 225678034 is an apocalyptic number.

25678034 is a deficient number, since it is larger than the sum of its proper divisors (13236394).

25678034 is a wasteful number, since it uses less digits than its factorization.

25678034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132460.

The product of its (nonzero) digits is 40320, while the sum is 35.

The square root of 25678034 is about 5067.3498004381. The cubic root of 25678034 is about 295.0216741712.

It can be divided in two parts, 2567 and 8034, that added together give a palindrome (10601).

The spelling of 25678034 in words is "twenty-five million, six hundred seventy-eight thousand, thirty-four".

Divisors: 1 2 97 194 132361 264722 12839017 25678034