Search a number
-
+
471223493 = 13172132233
BaseRepresentation
bin11100000101100…
…100110011000101
31012211200122002222
4130011210303011
51431113122433
6114431542125
714451222266
oct3405446305
91184618088
10471223493
11221aa2204
1211198a945
137681ac90
144682496d
152b581b98
hex1c164cc5

471223493 has 8 divisors (see below), whose sum is σ = 537322968. Its totient is φ = 409388544.

The previous prime is 471223481. The next prime is 471223499. The reversal of 471223493 is 394322174.

It can be written as a sum of positive squares in 4 ways, for example, as 96491329 + 374732164 = 9823^2 + 19358^2 .

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 471223493 - 26 = 471223429 is a prime.

It is a super-3 number, since 3×4712234933 (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (471223499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1065896 + ... + 1066337.

It is an arithmetic number, because the mean of its divisors is an integer number (67165371).

Almost surely, 2471223493 is an apocalyptic number.

It is an amenable number.

471223493 is a deficient number, since it is larger than the sum of its proper divisors (66099475).

471223493 is a wasteful number, since it uses less digits than its factorization.

471223493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2132263.

The product of its digits is 36288, while the sum is 35.

The square root of 471223493 is about 21707.6828104706. The cubic root of 471223493 is about 778.1720800382.

The spelling of 471223493 in words is "four hundred seventy-one million, two hundred twenty-three thousand, four hundred ninety-three".

Divisors: 1 13 17 221 2132233 27719029 36247961 471223493