Search a number
-
+
208460028 = 22374395653
BaseRepresentation
bin11000110110011…
…01100011111100
3112112020212101210
430123031203330
5411331210103
632404004420
75110611120
oct1433154374
9475225353
10208460028
11a7741117
1259990710
1334259c3a
141d985580
151347ae03
hexc6cd8fc

208460028 has 48 divisors (see below), whose sum is σ = 557258240. Its totient is φ = 59413824.

The previous prime is 208460009. The next prime is 208460029. The reversal of 208460028 is 820064802.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 208459977 and 208460004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (208460029) 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, 34050 + ... + 39702.

Almost surely, 2208460028 is an apocalyptic number.

208460028 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

208460028 is an abundant number, since it is smaller than the sum of its proper divisors (348798212).

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

208460028 is a wasteful number, since it uses less digits than its factorization.

208460028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6106 (or 6104 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 30.

The square root of 208460028 is about 14438.1448946878. The cubic root of 208460028 is about 592.9356969064.

The spelling of 208460028 in words is "two hundred eight million, four hundred sixty thousand, twenty-eight".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 439 878 1317 1756 2634 3073 5268 5653 6146 9219 11306 12292 16959 18438 22612 33918 36876 39571 67836 79142 118713 158284 237426 474852 2481667 4963334 7445001 9926668 14890002 17371669 29780004 34743338 52115007 69486676 104230014 208460028