Search a number
-
+
25916930 = 25133159109
BaseRepresentation
bin110001011011…
…1011000000010
31210202201100022
41202313120002
523113320210
62323253442
7433201364
oct142673002
953681308
1025916930
11136a1856
12881a282
1354a5680
143628d34
15241e155
hex18b7602

25916930 has 64 divisors (see below), whose sum is σ = 53222400. Its totient is φ = 9020160.

The previous prime is 25916843. The next prime is 25916939. The reversal of 25916930 is 3961952.

It is not an unprimeable number, because it can be changed into a prime (25916939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 237716 + ... + 237824.

It is an arithmetic number, because the mean of its divisors is an integer number (831600).

Almost surely, 225916930 is an apocalyptic number.

25916930 is an abundant number, since it is smaller than the sum of its proper divisors (27305470).

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

25916930 is a wasteful number, since it uses less digits than its factorization.

25916930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219.

The product of its (nonzero) digits is 14580, while the sum is 35.

The square root of 25916930 is about 5090.8673131403. The cubic root of 25916930 is about 295.9337643980.

The spelling of 25916930 in words is "twenty-five million, nine hundred sixteen thousand, nine hundred thirty".

Divisors: 1 2 5 10 13 26 31 59 62 65 109 118 130 155 218 295 310 403 545 590 767 806 1090 1417 1534 1829 2015 2834 3379 3658 3835 4030 6431 6758 7085 7670 9145 12862 14170 16895 18290 23777 32155 33790 43927 47554 64310 83603 87854 118885 167206 199361 219635 237770 398722 418015 439270 836030 996805 1993610 2591693 5183386 12958465 25916930