Search a number
-
+
25148668 = 2283211359
BaseRepresentation
bin101111111101…
…1110011111100
31202022200111011
41133323303330
522414224133
62255005004
7423521506
oct137736374
952280434
1025148668
1113217626
128509764
135296a8c
1434a8d76
15231b6cd
hex17fbcfc

25148668 has 24 divisors (see below), whose sum is σ = 44876160. Its totient is φ = 12329520.

The previous prime is 25148663. The next prime is 25148677. The reversal of 25148668 is 86684152.

It is a self number, because there is not a number n which added to its sum of digits gives 25148668.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25148663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69873 + ... + 70231.

It is an arithmetic number, because the mean of its divisors is an integer number (1869840).

Almost surely, 225148668 is an apocalyptic number.

It is an amenable number.

25148668 is a deficient number, since it is larger than the sum of its proper divisors (19727492).

25148668 is a wasteful number, since it uses less digits than its factorization.

25148668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 657 (or 655 counting only the distinct ones).

The product of its digits is 92160, while the sum is 40.

The square root of 25148668 is about 5014.8447633003. The cubic root of 25148668 is about 292.9802391671.

The spelling of 25148668 in words is "twenty-five million, one hundred forty-eight thousand, six hundred sixty-eight".

Divisors: 1 2 4 83 166 211 332 359 422 718 844 1436 17513 29797 35026 59594 70052 75749 119188 151498 302996 6287167 12574334 25148668