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228080892 = 223131462057
BaseRepresentation
bin11011001100000…
…11110011111100
3120220011201011110
431212003303330
5431342042032
634344322020
75436440604
oct1546036374
9526151143
10228080892
11107822606
1264473310
1338339910
1422411c04
15150547cc
hexd983cfc

228080892 has 24 divisors (see below), whose sum is σ = 573126736. Its totient is φ = 70178688.

The previous prime is 228080873. The next prime is 228080893. The reversal of 228080892 is 298080822.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 228080892.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228080893) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 730873 + ... + 731184.

Almost surely, 2228080892 is an apocalyptic number.

It is an amenable number.

228080892 is an abundant number, since it is smaller than the sum of its proper divisors (345045844).

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

228080892 is a wasteful number, since it uses less digits than its factorization.

228080892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1462077 (or 1462075 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 39.

The square root of 228080892 is about 15102.3472347844. The cubic root of 228080892 is about 610.9837142065.

The spelling of 228080892 in words is "two hundred twenty-eight million, eighty thousand, eight hundred ninety-two".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 156 1462057 2924114 4386171 5848228 8772342 17544684 19006741 38013482 57020223 76026964 114040446 228080892