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25025028 = 22372910273
BaseRepresentation
bin101111101110…
…1101000000100
31202002101212220
41133131220010
522401300103
62252212340
7422465160
oct137355004
952071786
1025025028
1113142746
12846a0b0
135252712
143475ca0
1522e4c53
hex17dda04

25025028 has 48 divisors (see below), whose sum is σ = 69041280. Its totient is φ = 6902784.

The previous prime is 25024981. The next prime is 25025041. The reversal of 25025028 is 82052052.

It is a junction number, because it is equal to n+sod(n) for n = 25024989 and 25025007.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2701 + ... + 7572.

It is an arithmetic number, because the mean of its divisors is an integer number (1438360).

Almost surely, 225025028 is an apocalyptic number.

25025028 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

25025028 is an abundant number, since it is smaller than the sum of its proper divisors (44016252).

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

25025028 is a wasteful number, since it uses less digits than its factorization.

25025028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10316 (or 10314 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 25025028 is about 5002.5021739126. The cubic root of 25025028 is about 292.4993176988.

It can be divided in two parts, 250250 and 28, that added together give a triangular number (250278 = T707).

The spelling of 25025028 in words is "twenty-five million, twenty-five thousand, twenty-eight".

Divisors: 1 2 3 4 6 7 12 14 21 28 29 42 58 84 87 116 174 203 348 406 609 812 1218 2436 10273 20546 30819 41092 61638 71911 123276 143822 215733 287644 297917 431466 595834 862932 893751 1191668 1787502 2085419 3575004 4170838 6256257 8341676 12512514 25025028