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3285525690 = 232585342797
BaseRepresentation
bin1100001111010101…
…0010010010111010
322110222021222221200
43003311102102322
523212043310230
61302004115030
7144263336046
oct30365222272
98428258850
103285525690
111436659097
12778395a76
134048b5055
142324cd026
15143694160
hexc3d524ba

3285525690 has 48 divisors (see below), whose sum is σ = 8552581128. Its totient is φ = 875092608.

The previous prime is 3285525653. The next prime is 3285525709. The reversal of 3285525690 is 965255823.

3285525690 is a `hidden beast` number, since 3 + 2 + 8 + 552 + 5 + 6 + 90 = 666.

3285525690 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 2703896001 + 581629689 = 51999^2 + 24117^2 .

It is a super-2 number, since 2×32855256902 = 21589358119299952200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 55372 + ... + 98168.

Almost surely, 23285525690 is an apocalyptic number.

3285525690 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

3285525690 is an abundant number, since it is smaller than the sum of its proper divisors (5267055438).

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

3285525690 is a wasteful number, since it uses less digits than its factorization.

3285525690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43663 (or 43660 counting only the distinct ones).

The product of its (nonzero) digits is 648000, while the sum is 45.

The square root of 3285525690 is about 57319.5053188703. The cubic root of 3285525690 is about 1486.6256522990.

The spelling of 3285525690 in words is "three billion, two hundred eighty-five million, five hundred twenty-five thousand, six hundred ninety".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 853 1706 2559 4265 5118 7677 8530 12795 15354 25590 38385 42797 76770 85594 128391 213985 256782 385173 427970 641955 770346 1283910 1925865 3851730 36505841 73011682 109517523 182529205 219035046 328552569 365058410 547587615 657105138 1095175230 1642762845 3285525690