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4072393 = 13224097
BaseRepresentation
bin1111100010001111001001
321122220021101
433202033021
52020304033
6223141401
746420603
oct17421711
97586241
104072393
112331716
121444861
13ac7800
14780173
1555697d
hex3e23c9

4072393 has 6 divisors (see below), whose sum is σ = 4409934. Its totient is φ = 3758976.

The previous prime is 4072337. The next prime is 4072399. The reversal of 4072393 is 3932704.

It can be written as a sum of positive squares in 3 ways, for example, as 104329 + 3968064 = 323^2 + 1992^2 .

It is a de Polignac number, because none of the positive numbers 2k-4072393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4072399) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11880 + ... + 12217.

It is an arithmetic number, because the mean of its divisors is an integer number (734989).

Almost surely, 24072393 is an apocalyptic number.

It is an amenable number.

4072393 is a deficient number, since it is larger than the sum of its proper divisors (337541).

4072393 is a wasteful number, since it uses less digits than its factorization.

4072393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24123 (or 24110 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 28.

The square root of 4072393 is about 2018.0170960624. The cubic root of 4072393 is about 159.6920247632.

It can be divided in two parts, 4072 and 393, that added together give a triangular number (4465 = T94).

The spelling of 4072393 in words is "four million, seventy-two thousand, three hundred ninety-three".

Divisors: 1 13 169 24097 313261 4072393