Search a number
-
+
228551076 = 2232131925703
BaseRepresentation
bin11011001111101…
…10100110100100
3120221001121010200
431213312212210
5432002113301
634402350500
75443436445
oct1547664644
9527047120
10228551076
11108013896
126465b430
1338472930
14224d52cc
15150e8c86
hexd9f69a4

228551076 has 72 divisors (see below), whose sum is σ = 654937920. Its totient is φ = 66619584.

The previous prime is 228551051. The next prime is 228551087. The reversal of 228551076 is 670155822.

It is a happy number.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 228551076.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3960 + ... + 21743.

It is an arithmetic number, because the mean of its divisors is an integer number (9096360).

Almost surely, 2228551076 is an apocalyptic number.

228551076 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

228551076 is an abundant number, since it is smaller than the sum of its proper divisors (426386844).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

228551076 is a wasteful number, since it uses less digits than its factorization.

228551076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25745 (or 25740 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 36.

The square root of 228551076 is about 15117.9058073531. The cubic root of 228551076 is about 611.4032694299.

It can be divided in two parts, 2285 and 51076, that added together give a square (53361 = 2312).

The spelling of 228551076 in words is "two hundred twenty-eight million, five hundred fifty-one thousand, seventy-six".

Divisors: 1 2 3 4 6 9 12 13 18 19 26 36 38 39 52 57 76 78 114 117 156 171 228 234 247 342 468 494 684 741 988 1482 2223 2964 4446 8892 25703 51406 77109 102812 154218 231327 308436 334139 462654 488357 668278 925308 976714 1002417 1336556 1465071 1953428 2004834 2930142 3007251 4009668 4395213 5860284 6014502 6348641 8790426 12029004 12697282 17580852 19045923 25394564 38091846 57137769 76183692 114275538 228551076