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4961289 = 31653763
BaseRepresentation
bin10010111011010000001001
3100100001121110
4102323100021
52232230124
6254200533
760112254
oct22732011
910301543
104961289
112889543
1217b3149
131049298
1493209b
15680029
hex4bb409

4961289 has 4 divisors (see below), whose sum is σ = 6615056. Its totient is φ = 3307524.

The previous prime is 4961249. The next prime is 4961311. The reversal of 4961289 is 9821694.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 4961289 - 216 = 4895753 is a prime.

It is a super-2 number, since 2×49612892 = 49228777083042, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4961249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 826879 + ... + 826884.

It is an arithmetic number, because the mean of its divisors is an integer number (1653764).

Almost surely, 24961289 is an apocalyptic number.

It is an amenable number.

4961289 is a deficient number, since it is larger than the sum of its proper divisors (1653767).

4961289 is a wasteful number, since it uses less digits than its factorization.

4961289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1653766.

The product of its digits is 31104, while the sum is 39.

The square root of 4961289 is about 2227.3951153758. The cubic root of 4961289 is about 170.5551516757. Note that the first 3 decimals are identical.

The spelling of 4961289 in words is "four million, nine hundred sixty-one thousand, two hundred eighty-nine".

Divisors: 1 3 1653763 4961289