Search a number
-
+
49239293 = 173179137
BaseRepresentation
bin1011101111010…
…1010011111101
310102122121121112
42323311103331
5100101124133
64515211405
71135345535
oct273652375
9112577545
1049239293
1125881234
12145a6b65
13a28009c
14677a4c5
1544c9648
hex2ef54fd

49239293 has 8 divisors (see below), whose sum is σ = 52305912. Its totient is φ = 46191616.

The previous prime is 49239287. The next prime is 49239331. The reversal of 49239293 is 39293294.

It can be written as a sum of positive squares in 4 ways, for example, as 267289 + 48972004 = 517^2 + 6998^2 .

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 49239293 - 210 = 49238269 is a prime.

It is a super-4 number, since 4×492392934 (a number of 32 digits) contains 4444 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 49239293.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49239263) 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, 821 + ... + 9957.

It is an arithmetic number, because the mean of its divisors is an integer number (6538239).

Almost surely, 249239293 is an apocalyptic number.

It is an amenable number.

49239293 is a deficient number, since it is larger than the sum of its proper divisors (3066619).

49239293 is a wasteful number, since it uses less digits than its factorization.

49239293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9471.

The product of its digits is 104976, while the sum is 41.

The square root of 49239293 is about 7017.0715401797. The cubic root of 49239293 is about 366.5252816696.

The spelling of 49239293 in words is "forty-nine million, two hundred thirty-nine thousand, two hundred ninety-three".

Divisors: 1 17 317 5389 9137 155329 2896429 49239293