Search a number
-
+
228800739 = 31731144719
BaseRepresentation
bin11011010001100…
…11100011100011
3120221112021121110
431220303203203
5432033110424
634411554403
75445526356
oct1550634343
9527467543
10228800739
11108174422
126475ba03
133852c46b
142255c29d
1515147c29
hexda338e3

228800739 has 16 divisors (see below), whose sum is σ = 333434880. Its totient is φ = 138929280.

The previous prime is 228800731. The next prime is 228800777. The reversal of 228800739 is 937008822.

It is not a de Polignac number, because 228800739 - 23 = 228800731 is a prime.

It is a super-2 number, since 2×2288007392 = 104699556333892242, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 228800697 and 228800706.

It is not an unprimeable number, because it can be changed into a prime (228800731) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70779 + ... + 73940.

It is an arithmetic number, because the mean of its divisors is an integer number (20839680).

Almost surely, 2228800739 is an apocalyptic number.

228800739 is a deficient number, since it is larger than the sum of its proper divisors (104634141).

228800739 is a wasteful number, since it uses less digits than its factorization.

228800739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144770.

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 228800739 is about 15126.1607488483. The cubic root of 228800739 is about 611.6258152012.

The spelling of 228800739 in words is "two hundred twenty-eight million, eight hundred thousand, seven hundred thirty-nine".

Divisors: 1 3 17 31 51 93 527 1581 144719 434157 2460223 4486289 7380669 13458867 76266913 228800739