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4081293 = 33712129
BaseRepresentation
bin1111100100011010001101
321200100111000
433210122031
52021100133
6223250513
746455546
oct17443215
97610430
104081293
112338377
121449a39
13acb888
147834cd
15559413
hex3e468d

4081293 has 16 divisors (see below), whose sum is σ = 6134400. Its totient is φ = 2681280.

The previous prime is 4081283. The next prime is 4081303. The reversal of 4081293 is 3921804.

It is an interprime number because it is at equal distance from previous prime (4081283) and next prime (4081303).

It is not a de Polignac number, because 4081293 - 24 = 4081277 is a prime.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4081213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 853 + ... + 2981.

It is an arithmetic number, because the mean of its divisors is an integer number (383400).

Almost surely, 24081293 is an apocalyptic number.

4081293 is the 1278-th heptagonal number.

It is an amenable number.

4081293 is a deficient number, since it is larger than the sum of its proper divisors (2053107).

4081293 is a wasteful number, since it uses less digits than its factorization.

4081293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2209 (or 2203 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 4081293 is about 2020.2210275116. The cubic root of 4081293 is about 159.8082729505.

The spelling of 4081293 in words is "four million, eighty-one thousand, two hundred ninety-three".

Divisors: 1 3 9 27 71 213 639 1917 2129 6387 19161 57483 151159 453477 1360431 4081293