Search a number
-
+
47969597 = 1317217057
BaseRepresentation
bin1011011011111…
…1010100111101
310100021002220202
42312333110331
544240011342
64432053245
71121510024
oct266772475
9110232822
1047969597
11250942a5
1214094225
139c271a0
1465298bb
154328332
hex2dbf53d

47969597 has 8 divisors (see below), whose sum is σ = 54698616. Its totient is φ = 41674752.

The previous prime is 47969561. The next prime is 47969599. The reversal of 47969597 is 79596974.

It can be written as a sum of positive squares in 4 ways, for example, as 7150276 + 40819321 = 2674^2 + 6389^2 .

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

It is not a de Polignac number, because 47969597 - 26 = 47969533 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47969599) 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, 108308 + ... + 108749.

It is an arithmetic number, because the mean of its divisors is an integer number (6837327).

Almost surely, 247969597 is an apocalyptic number.

It is an amenable number.

47969597 is a deficient number, since it is larger than the sum of its proper divisors (6729019).

47969597 is a wasteful number, since it uses less digits than its factorization.

47969597 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217087.

The product of its digits is 4286520, while the sum is 56.

The square root of 47969597 is about 6926.0087351952. The cubic root of 47969597 is about 363.3473719197.

The spelling of 47969597 in words is "forty-seven million, nine hundred sixty-nine thousand, five hundred ninety-seven".

Divisors: 1 13 17 221 217057 2821741 3689969 47969597