Search a number
-
+
32902428 = 22313210913
BaseRepresentation
bin111110110000…
…0110100011100
32021220121122110
41331200310130
531410334203
63133114020
7546444306
oct175406434
967817573
1032902428
1117633099
12b028910
136a800c0
144526976
152d4dd03
hex1f60d1c

32902428 has 24 divisors (see below), whose sum is σ = 82678288. Its totient is φ = 10123776.

The previous prime is 32902421. The next prime is 32902477. The reversal of 32902428 is 82420923.

It is a junction number, because it is equal to n+sod(n) for n = 32902395 and 32902404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32902421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105301 + ... + 105612.

Almost surely, 232902428 is an apocalyptic number.

It is an amenable number.

32902428 is an abundant number, since it is smaller than the sum of its proper divisors (49775860).

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

32902428 is a wasteful number, since it uses less digits than its factorization.

32902428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210933 (or 210931 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 32902428 is about 5736.0638071765. The cubic root of 32902428 is about 320.4369941121.

The spelling of 32902428 in words is "thirty-two million, nine hundred two thousand, four hundred twenty-eight".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 156 210913 421826 632739 843652 1265478 2530956 2741869 5483738 8225607 10967476 16451214 32902428