Search a number
-
+
228917048 = 2328614631
BaseRepresentation
bin11011010010011…
…11111100111000
3120221202012011012
431221033330320
5432100321143
634414253052
75446522433
oct1551177470
9527665135
10228917048
11108243848
12647b7188
1338570399
142258c81a
151516c418
hexda4ff38

228917048 has 8 divisors (see below), whose sum is σ = 429219480. Its totient is φ = 114458520.

The previous prime is 228917047. The next prime is 228917077. The reversal of 228917048 is 840719822.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 228916996 and 228917014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228917047) 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 as a sum of consecutive naturals, namely, 14307308 + ... + 14307323.

It is an arithmetic number, because the mean of its divisors is an integer number (53652435).

Almost surely, 2228917048 is an apocalyptic number.

It is an amenable number.

228917048 is a deficient number, since it is larger than the sum of its proper divisors (200302432).

228917048 is a wasteful number, since it uses less digits than its factorization.

228917048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28614637 (or 28614633 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 41.

The square root of 228917048 is about 15130.0048909444. The cubic root of 228917048 is about 611.7294359858.

The spelling of 228917048 in words is "two hundred twenty-eight million, nine hundred seventeen thousand, forty-eight".

Divisors: 1 2 4 8 28614631 57229262 114458524 228917048