Search a number
-
+
25713272 = 2313433571
BaseRepresentation
bin110001000010…
…1101001111000
31210101100222102
41202011221320
523040311042
62315042532
7431362544
oct142055170
953340872
1025713272
1113572842
128740448
135433a70
1435b4a24
1523cdb32
hex1885a78

25713272 has 32 divisors (see below), whose sum is σ = 52132080. Its totient is φ = 11819520.

The previous prime is 25713271. The next prime is 25713283. The reversal of 25713272 is 27231752.

It is a super-2 number, since 2×257132722 = 1322344713891968, which contains 22 as substring.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25713271) 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 7 ways as a sum of consecutive naturals, for example, 44747 + ... + 45317.

Almost surely, 225713272 is an apocalyptic number.

It is an amenable number.

25713272 is an abundant number, since it is smaller than the sum of its proper divisors (26418808).

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

25713272 is a wasteful number, since it uses less digits than its factorization.

25713272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1023 (or 1019 counting only the distinct ones).

The product of its digits is 5880, while the sum is 29.

The square root of 25713272 is about 5070.8255738095. The cubic root of 25713272 is about 295.1565653640.

The spelling of 25713272 in words is "twenty-five million, seven hundred thirteen thousand, two hundred seventy-two".

Divisors: 1 2 4 8 13 26 52 104 433 571 866 1142 1732 2284 3464 4568 5629 7423 11258 14846 22516 29692 45032 59384 247243 494486 988972 1977944 3214159 6428318 12856636 25713272