Search a number
-
+
28414530 = 2335105239
BaseRepresentation
bin110110001100…
…1001001000010
31222110121102000
41230121021002
524233231110
62453004430
7463343124
oct154311102
958417360
1028414530
1115048291
129623716
135b6b441
143ab9214
1527641c0
hex1b19242

28414530 has 32 divisors (see below), whose sum is σ = 75772800. Its totient is φ = 7577136.

The previous prime is 28414513. The next prime is 28414541. The reversal of 28414530 is 3541482.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 28414494 and 28414503.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52350 + ... + 52889.

It is an arithmetic number, because the mean of its divisors is an integer number (2367900).

Almost surely, 228414530 is an apocalyptic number.

28414530 is an abundant number, since it is smaller than the sum of its proper divisors (47358270).

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

28414530 is a wasteful number, since it uses less digits than its factorization.

28414530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105255 (or 105249 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 28414530 is about 5330.5281164252. The cubic root of 28414530 is about 305.1500829037.

The spelling of 28414530 in words is "twenty-eight million, four hundred fourteen thousand, five hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 27 30 45 54 90 135 270 105239 210478 315717 526195 631434 947151 1052390 1578585 1894302 2841453 3157170 4735755 5682906 9471510 14207265 28414530