Search a number
-
+
25087104 = 273371761
BaseRepresentation
bin101111110110…
…0110010000000
31202012120001000
41133230302000
522410241404
62253412000
7423144150
oct137546200
952176030
1025087104
1113185349
12849a000
135274a53
143490760
152308339
hex17ecc80

25087104 has 256 divisors, whose sum is σ = 91065600. Its totient is φ = 6635520.

The previous prime is 25087099. The next prime is 25087109. The reversal of 25087104 is 40178052.

It is an interprime number because it is at equal distance from previous prime (25087099) and next prime (25087109).

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25087109) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 411234 + ... + 411294.

It is an arithmetic number, because the mean of its divisors is an integer number (355725).

Almost surely, 225087104 is an apocalyptic number.

25087104 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25087104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45532800).

25087104 is an abundant number, since it is smaller than the sum of its proper divisors (65978496).

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

25087104 is a wasteful number, since it uses less digits than its factorization.

25087104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108 (or 90 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 25087104 is about 5008.7028260818. The cubic root of 25087104 is about 292.7409717073.

The spelling of 25087104 in words is "twenty-five million, eighty-seven thousand, one hundred four".