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285151807645 = 5289271971527
BaseRepresentation
bin1000010011001000101…
…11110100100010011101
31000021000201102200222221
410021210113310202131
514132442330321040
6334555200505341
726413220241655
oct4114427644235
91007021380887
10285151807645
11aaa28841651
124732091b251
1320b74895483
14db31157365
15763dd8474a
hex42645f489d

285151807645 has 8 divisors (see below), whose sum is σ = 342194171904. Its totient is φ = 228113444304.

The previous prime is 285151807627. The next prime is 285151807657. The reversal of 285151807645 is 546708151582.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 285151807645 - 25 = 285151807613 is a prime.

It is a super-2 number, since 2×2851518076452 (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 285151807592 and 285151807601.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 841129 + ... + 1130398.

It is an arithmetic number, because the mean of its divisors is an integer number (42774271488).

Almost surely, 2285151807645 is an apocalyptic number.

It is an amenable number.

285151807645 is a deficient number, since it is larger than the sum of its proper divisors (57042364259).

285151807645 is a wasteful number, since it uses less digits than its factorization.

285151807645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2000459.

The product of its (nonzero) digits is 2688000, while the sum is 52.

The spelling of 285151807645 in words is "two hundred eighty-five billion, one hundred fifty-one million, eight hundred seven thousand, six hundred forty-five".

Divisors: 1 5 28927 144635 1971527 9857635 57030361529 285151807645