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28076684450 = 2524321616043
BaseRepresentation
bin11010001001100000…
…000011010010100010
32200110201020100102212
4122021200003102202
5430000112400300
620522004442122
72012523610613
oct321140032242
980421210385
1028076684450
11109a8613651
1255369a9342
132855a89c69
141504c31c0a
15ae4d62935
hex6898034a2

28076684450 has 48 divisors (see below), whose sum is σ = 53470687776. Its totient is φ = 10962604800.

The previous prime is 28076684443. The next prime is 28076684459. The reversal of 28076684450 is 5448667082.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (50).

It is not an unprimeable number, because it can be changed into a prime (28076684459) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4643129 + ... + 4649171.

It is an arithmetic number, because the mean of its divisors is an integer number (1113972662).

Almost surely, 228076684450 is an apocalyptic number.

28076684450 is a deficient number, since it is larger than the sum of its proper divisors (25394003326).

28076684450 is a wasteful number, since it uses less digits than its factorization.

28076684450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8259 (or 8254 counting only the distinct ones).

The product of its (nonzero) digits is 2580480, while the sum is 50.

The spelling of 28076684450 in words is "twenty-eight billion, seventy-six million, six hundred eighty-four thousand, four hundred fifty".

Divisors: 1 2 5 10 25 43 50 86 215 430 1075 2150 2161 4322 6043 10805 12086 21610 30215 54025 60430 92923 108050 151075 185846 259849 302150 464615 519698 929230 1299245 2323075 2598490 4646150 6496225 12992450 13058923 26117846 65294615 130589230 326473075 561533689 652946150 1123067378 2807668445 5615336890 14038342225 28076684450