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4752139 = 75312809
BaseRepresentation
bin10010001000001100001011
322221102201011
4102020030023
52204032024
6245504351
755251430
oct22101413
98842634
104752139
112756397
1217120b7
13ca5022
148b9b87
1563d094
hex48830b

4752139 has 8 divisors (see below), whose sum is σ = 5533920. Its totient is φ = 3996096.

The previous prime is 4752133. The next prime is 4752157. The reversal of 4752139 is 9312574.

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 4752139 - 23 = 4752131 is a prime.

It is an Ulam number.

It is a d-powerful number, because it can be written as 410 + 74 + 55 + 221 + 1 + 313 + 94 .

It is a self number, because there is not a number n which added to its sum of digits gives 4752139.

It is not an unprimeable number, because it can be changed into a prime (4752131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6034 + ... + 6775.

It is an arithmetic number, because the mean of its divisors is an integer number (691740).

Almost surely, 24752139 is an apocalyptic number.

4752139 is a deficient number, since it is larger than the sum of its proper divisors (781781).

4752139 is a wasteful number, since it uses less digits than its factorization.

4752139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12869.

The product of its digits is 7560, while the sum is 31.

The square root of 4752139 is about 2179.9401367928. The cubic root of 4752139 is about 168.1239990635.

It can be divided in two parts, 475 and 2139, that multiplied together give a triangular number (1016025 = T1425).

The spelling of 4752139 in words is "four million, seven hundred fifty-two thousand, one hundred thirty-nine".

Divisors: 1 7 53 371 12809 89663 678877 4752139