Search a number
-
+
228746974 = 2719159073
BaseRepresentation
bin11011010001001…
…10011011011110
3120221102112212011
431220212123132
5432024400344
634410501434
75445213541
oct1550463336
9527375764
10228746974
11108137a95
126473487a
1338510b51
1422546858
1515136d34
hexda266de

228746974 has 8 divisors (see below), whose sum is σ = 343599840. Its totient is φ = 114213696.

The previous prime is 228746963. The next prime is 228746977. The reversal of 228746974 is 479647822.

It is a happy number.

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

It is a super-2 number, since 2×2287469742 = 104650356228313352, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228746977) 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, 78099 + ... + 80974.

It is an arithmetic number, because the mean of its divisors is an integer number (42949980).

Almost surely, 2228746974 is an apocalyptic number.

228746974 is a deficient number, since it is larger than the sum of its proper divisors (114852866).

228746974 is a wasteful number, since it uses less digits than its factorization.

228746974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159794.

The product of its digits is 1354752, while the sum is 49.

The square root of 228746974 is about 15124.3834254491. The cubic root of 228746974 is about 611.5779035873.

The spelling of 228746974 in words is "two hundred twenty-eight million, seven hundred forty-six thousand, nine hundred seventy-four".

Divisors: 1 2 719 1438 159073 318146 114373487 228746974