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3145807 = 74197113
BaseRepresentation
bin1100000000000001001111
312220211020101
430000001033
51301131212
6151231531
735511310
oct14000117
95824211
103145807
111859545
1210785a7
13861b32
145bc607
15422157
hex30004f

3145807 has 16 divisors (see below), whose sum is σ = 3753792. Its totient is φ = 2580480.

The previous prime is 3145801. The next prime is 3145817. The reversal of 3145807 is 7085413.

It is not a de Polignac number, because 3145807 - 27 = 3145679 is a prime.

It is a super-2 number, since 2×31458072 = 19792203362498, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3145801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27783 + ... + 27895.

It is an arithmetic number, because the mean of its divisors is an integer number (234612).

Almost surely, 23145807 is an apocalyptic number.

3145807 is a deficient number, since it is larger than the sum of its proper divisors (607985).

3145807 is a wasteful number, since it uses less digits than its factorization.

3145807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 3145807 is about 1773.6422976463. The cubic root of 3145807 is about 146.5246496048.

The spelling of 3145807 in words is "three million, one hundred forty-five thousand, eight hundred seven".

Divisors: 1 7 41 97 113 287 679 791 3977 4633 10961 27839 32431 76727 449401 3145807