Search a number
-
+
5147554281 = 31993860939
BaseRepresentation
bin1001100101101000…
…10111000111101001
3111021202000211222120
410302310113013221
541020233214111
62210441541453
7241363326612
oct46264270751
914252024876
105147554281
1122017297a1
12bb7aa4889
136405b250c
1436b910c09
15201da1406
hex132d171e9

5147554281 has 8 divisors (see below), whose sum is σ = 6866857440. Its totient is φ = 3429976992.

The previous prime is 5147554267. The next prime is 5147554283. The reversal of 5147554281 is 1824557415.

It is a happy number.

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

It is not a de Polignac number, because 5147554281 - 221 = 5145457129 is a prime.

It is a super-2 number, since 2×51475542812 = 52994630151682853922, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (5147554283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 424491 + ... + 436448.

It is an arithmetic number, because the mean of its divisors is an integer number (858357180).

Almost surely, 25147554281 is an apocalyptic number.

It is an amenable number.

5147554281 is a deficient number, since it is larger than the sum of its proper divisors (1719303159).

5147554281 is a wasteful number, since it uses less digits than its factorization.

5147554281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 862935.

The product of its digits is 224000, while the sum is 42.

The square root of 5147554281 is about 71746.4583167699. The cubic root of 5147554281 is about 1726.6340917804.

The spelling of 5147554281 in words is "five billion, one hundred forty-seven million, five hundred fifty-four thousand, two hundred eighty-one".

Divisors: 1 3 1993 5979 860939 2582817 1715851427 5147554281