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285382525 = 5219515851
BaseRepresentation
bin10001000000101…
…001011101111101
3201212222221020011
4101000221131331
51041024220100
644152423221
710033466011
oct2100513575
9655887204
10285382525
1113710012a
127b6a7b11
13471805cc
1429c8a541
151a0c2bba
hex1102977d

285382525 has 12 divisors (see below), whose sum is σ = 354116224. Its totient is φ = 228150000.

The previous prime is 285382507. The next prime is 285382561. The reversal of 285382525 is 525283582.

It is not a de Polignac number, because 285382525 - 27 = 285382397 is a prime.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 45850 + ... + 51700.

Almost surely, 2285382525 is an apocalyptic number.

285382525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

285382525 is a deficient number, since it is larger than the sum of its proper divisors (68733699).

285382525 is a wasteful number, since it uses less digits than its factorization.

285382525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7812 (or 7807 counting only the distinct ones).

The product of its digits is 192000, while the sum is 40.

The square root of 285382525 is about 16893.2686298419. The cubic root of 285382525 is about 658.3787303345.

The spelling of 285382525 in words is "two hundred eighty-five million, three hundred eighty-two thousand, five hundred twenty-five".

Divisors: 1 5 25 1951 5851 9755 29255 48775 146275 11415301 57076505 285382525