Search a number
-
+
28693842184 = 2372383191119
BaseRepresentation
bin11010101110010010…
…010100100100001000
32202001201112012200201
4122232102110210020
5432231110422214
621103132341544
72034026430400
oct325622244410
982051465621
1028693842184
1111194a20367
1256896148b4
1329238b2357
141562ba3800
15b2e11e274
hex6ae494908

28693842184 has 48 divisors (see below), whose sum is σ = 62748518400. Its totient is φ = 12265188768.

The previous prime is 28693842131. The next prime is 28693842187. The reversal of 28693842184 is 48124839682.

It is not an unprimeable number, because it can be changed into a prime (28693842187) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 54577 + ... + 245695.

It is an arithmetic number, because the mean of its divisors is an integer number (1307260800).

Almost surely, 228693842184 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28693842184, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31374259200).

28693842184 is an abundant number, since it is smaller than the sum of its proper divisors (34054676216).

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

28693842184 is a wasteful number, since it uses less digits than its factorization.

28693842184 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191522 (or 191511 counting only the distinct ones).

The product of its digits is 5308416, while the sum is 55.

The spelling of 28693842184 in words is "twenty-eight billion, six hundred ninety-three million, eight hundred forty-two thousand, one hundred eighty-four".

Divisors: 1 2 4 7 8 14 28 49 56 98 196 383 392 766 1532 2681 3064 5362 10724 18767 21448 37534 75068 150136 191119 382238 764476 1337833 1528952 2675666 5351332 9364831 10702664 18729662 37459324 73198577 74918648 146397154 292794308 512390039 585588616 1024780078 2049560156 3586730273 4099120312 7173460546 14346921092 28693842184