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25030628 = 22753101167
BaseRepresentation
bin101111101111…
…0111111100100
31202002200120022
41133132333210
522401440003
62252254312
7422520410
oct137367744
952080508
1025030628
1113146977
128471398
13525512c
143477d40
1522e6738
hex17defe4

25030628 has 48 divisors (see below), whose sum is σ = 51819264. Its totient is φ = 10358400.

The previous prime is 25030591. The next prime is 25030633. The reversal of 25030628 is 82603052.

It is a junction number, because it is equal to n+sod(n) for n = 25030597 and 25030606.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 149801 + ... + 149967.

It is an arithmetic number, because the mean of its divisors is an integer number (1079568).

Almost surely, 225030628 is an apocalyptic number.

25030628 is a gapful number since it is divisible by the number (28) 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 25030628, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25909632).

25030628 is an abundant number, since it is smaller than the sum of its proper divisors (26788636).

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

25030628 is a wasteful number, since it uses less digits than its factorization.

25030628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332 (or 330 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 25030628 is about 5003.0618624998. The cubic root of 25030628 is about 292.5211341780.

The spelling of 25030628 in words is "twenty-five million, thirty thousand, six hundred twenty-eight".

Divisors: 1 2 4 7 14 28 53 101 106 167 202 212 334 371 404 668 707 742 1169 1414 1484 2338 2828 4676 5353 8851 10706 16867 17702 21412 33734 35404 37471 61957 67468 74942 118069 123914 149884 236138 247828 472276 893951 1787902 3575804 6257657 12515314 25030628