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25000212 = 2232083351
BaseRepresentation
bin101111101011…
…1100100010100
31202001010211210
41133113210110
522400001322
62251501420
7422332626
oct137274424
952033753
1025000212
1113126036
128457870
135244333
14346ac16
1522dc70c
hex17d7914

25000212 has 12 divisors (see below), whose sum is σ = 58333856. Its totient is φ = 8333400.

The previous prime is 25000211. The next prime is 25000231. The reversal of 25000212 is 21200052.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Harshad number since it is a multiple of its sum of digits (12), and also a Moran number because the ratio is a prime number: 2083351 = 25000212 / (2 + 5 + 0 + 0 + 0 + 2 + 1 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25000211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1041664 + ... + 1041687.

Almost surely, 225000212 is an apocalyptic number.

It is an amenable number.

25000212 is an abundant number, since it is smaller than the sum of its proper divisors (33333644).

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

25000212 is a wasteful number, since it uses less digits than its factorization.

25000212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2083358 (or 2083356 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 12.

The square root of 25000212 is about 5000.0211999551. The cubic root of 25000212 is about 292.4026003413.

Adding to 25000212 its reverse (21200052), we get a palindrome (46200264).

The spelling of 25000212 in words is "twenty-five million, two hundred twelve", and thus it is an aban number.

Divisors: 1 2 3 4 6 12 2083351 4166702 6250053 8333404 12500106 25000212