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25002012 = 22372312941
BaseRepresentation
bin101111101100…
…0000000011100
31202001020022110
41133120000130
522400031022
62251514020
7422341110
oct137300034
952036273
1025002012
1113127422
128458910
1352450b9
14346b740
1522dd00c
hex17d801c

25002012 has 48 divisors (see below), whose sum is σ = 69576192. Its totient is φ = 6832320.

The previous prime is 25002001. The next prime is 25002037. The reversal of 25002012 is 21020052.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4539 + ... + 8402.

It is an arithmetic number, because the mean of its divisors is an integer number (1449504).

Almost surely, 225002012 is an apocalyptic number.

It is an amenable number.

25002012 is an abundant number, since it is smaller than the sum of its proper divisors (44574180).

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

25002012 is a wasteful number, since it uses less digits than its factorization.

25002012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12978 (or 12976 counting only the distinct ones).

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

The square root of 25002012 is about 5000.2011959520. The cubic root of 25002012 is about 292.4096177758.

Adding to 25002012 its reverse (21020052), we get a palindrome (46022064).

The spelling of 25002012 in words is "twenty-five million, two thousand, twelve".

Divisors: 1 2 3 4 6 7 12 14 21 23 28 42 46 69 84 92 138 161 276 322 483 644 966 1932 12941 25882 38823 51764 77646 90587 155292 181174 271761 297643 362348 543522 595286 892929 1087044 1190572 1785858 2083501 3571716 4167002 6250503 8334004 12501006 25002012