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3078081 = 3553239
BaseRepresentation
bin1011101111011111000001
312210101100000
423233133001
51241444311
6145550213
735106666
oct13573701
95711300
103078081
111812676
121045369
1383a066
145a1a6d
1540c056
hex2ef7c1

3078081 has 24 divisors (see below), whose sum is σ = 4717440. Its totient is φ = 2004912.

The previous prime is 3078073. The next prime is 3078109. The reversal of 3078081 is 1808703.

It is not a de Polignac number, because 3078081 - 23 = 3078073 is a prime.

It is a super-2 number, since 2×30780812 = 18949165285122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (3078001) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12760 + ... + 12998.

It is an arithmetic number, because the mean of its divisors is an integer number (196560).

Almost surely, 23078081 is an apocalyptic number.

It is an amenable number.

3078081 is a deficient number, since it is larger than the sum of its proper divisors (1639359).

3078081 is an equidigital number, since it uses as much as digits as its factorization.

3078081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307 (or 295 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The square root of 3078081 is about 1754.4460664267. The cubic root of 3078081 is about 145.4655035660.

3078081 divided by its sum of digits (27) gives a triangular number (114003 = T477).

The spelling of 3078081 in words is "three million, seventy-eight thousand, eighty-one".

Divisors: 1 3 9 27 53 81 159 239 243 477 717 1431 2151 4293 6453 12667 12879 19359 38001 58077 114003 342009 1026027 3078081