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20231232 = 263715053
BaseRepresentation
bin100110100101…
…1010001000000
31102001212000220
41031023101000
520134344412
62001343040
7333651120
oct115132100
942055026
1020231232
111046902a
126937a80
134264758
142988c80
151b9968c
hex134b440

20231232 has 56 divisors (see below), whose sum is σ = 61179456. Its totient is φ = 5779968.

The previous prime is 20231203. The next prime is 20231243. The reversal of 20231232 is 23213202.

It is a tau number, because it is divible by the number of its divisors (56).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6183 + ... + 8870.

Almost surely, 220231232 is an apocalyptic number.

It is an amenable number.

20231232 is an abundant number, since it is smaller than the sum of its proper divisors (40948224).

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

20231232 is a wasteful number, since it uses less digits than its factorization.

20231232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15075 (or 15065 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 20231232 is about 4497.9141832632. The cubic root of 20231232 is about 272.4838561825.

Adding to 20231232 its reverse (23213202), we get a palindrome (43444434).

The spelling of 20231232 in words is "twenty million, two hundred thirty-one thousand, two hundred thirty-two".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 32 42 48 56 64 84 96 112 168 192 224 336 448 672 1344 15053 30106 45159 60212 90318 105371 120424 180636 210742 240848 316113 361272 421484 481696 632226 722544 842968 963392 1264452 1445088 1685936 2528904 2890176 3371872 5057808 6743744 10115616 20231232