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4749143 = 71315179
BaseRepresentation
bin10010000111011101010111
322221021121012
4102013131113
52203433033
6245442435
755236620
oct22073527
98837535
104749143
112754113
12171041b
13ca3859
148b8a47
1563c248
hex487757

4749143 has 8 divisors (see below), whose sum is σ = 5470080. Its totient is φ = 4038840.

The previous prime is 4749139. The next prime is 4749179. The reversal of 4749143 is 3419474.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4749143 - 22 = 4749139 is a prime.

It is a super-3 number, since 3×47491433 (a number of 21 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4749193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1673 + ... + 3506.

It is an arithmetic number, because the mean of its divisors is an integer number (683760).

Almost surely, 24749143 is an apocalyptic number.

4749143 is a deficient number, since it is larger than the sum of its proper divisors (720937).

4749143 is a wasteful number, since it uses less digits than its factorization.

4749143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5317.

The product of its digits is 12096, while the sum is 32.

The square root of 4749143 is about 2179.2528536175. The cubic root of 4749143 is about 168.0886602129.

The spelling of 4749143 in words is "four million, seven hundred forty-nine thousand, one hundred forty-three".

Divisors: 1 7 131 917 5179 36253 678449 4749143