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25006434 = 2319972087
BaseRepresentation
bin101111101100…
…1000101100010
31202001110101020
41133121011202
522400201214
62251550310
7422360025
oct137310542
952043336
1025006434
111312a782
12845b396
13524710b
14346d1bc
1522de4a9
hex17d9162

25006434 has 16 divisors (see below), whose sum is σ = 50061888. Its totient is φ = 8327312.

The previous prime is 25006409. The next prime is 25006441. The reversal of 25006434 is 43460052.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10939 + ... + 13025.

It is an arithmetic number, because the mean of its divisors is an integer number (3128868).

Almost surely, 225006434 is an apocalyptic number.

25006434 is an abundant number, since it is smaller than the sum of its proper divisors (25055454).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25006434 is a wasteful number, since it uses less digits than its factorization.

25006434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4089.

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 25006434 is about 5000.6433586090. The cubic root of 25006434 is about 292.4268558432.

Adding to 25006434 its reverse (43460052), we get a palindrome (68466486).

The spelling of 25006434 in words is "twenty-five million, six thousand, four hundred thirty-four".

Divisors: 1 2 3 6 1997 2087 3994 4174 5991 6261 11982 12522 4167739 8335478 12503217 25006434