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25012000345 = 571523113469
BaseRepresentation
bin10111010010110101…
…001101011001011001
32101120010111021012011
4113102311031121121
5402211033002340
615253525545521
71543551331543
oct272265153131
971503437164
1025012000345
11a675693072
124a205752a1
132487b78707
1412d3bcc693
159b5c930ea
hex5d2d4d659

25012000345 has 16 divisors (see below), whose sum is σ = 30445217280. Its totient is φ = 19722539200.

The previous prime is 25012000313. The next prime is 25012000379. The reversal of 25012000345 is 54300021052.

It is not a de Polignac number, because 25012000345 - 25 = 25012000313 is a prime.

It is a super-2 number, since 2×250120003452 (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1850271 + ... + 1863739.

It is an arithmetic number, because the mean of its divisors is an integer number (1902826080).

Almost surely, 225012000345 is an apocalyptic number.

It is an amenable number.

25012000345 is a deficient number, since it is larger than the sum of its proper divisors (5433216935).

25012000345 is a wasteful number, since it uses less digits than its factorization.

25012000345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18776.

The product of its (nonzero) digits is 1200, while the sum is 22.

Adding to 25012000345 its reverse (54300021052), we get a palindrome (79312021397).

The spelling of 25012000345 in words is "twenty-five billion, twelve million, three hundred forty-five", and thus it is an aban number.

Divisors: 1 5 71 355 5231 13469 26155 67345 371401 956299 1857005 4781495 70456339 352281695 5002400069 25012000345