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13672233 = 34179929
BaseRepresentation
bin110100001001…
…111100101001
3221201121210000
4310021330221
512000002413
61205013213
7224132511
oct64117451
927647700
1013672233
117799173
1246b4209
132aa91a3
141b5c841
151301073
hexd09f29

13672233 has 20 divisors (see below), whose sum is σ = 21627540. Its totient is φ = 8577792.

The previous prime is 13672231. The next prime is 13672261. The reversal of 13672233 is 33227631.

13672233 is digitally balanced in base 2, base 3 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 6718464 + 6953769 = 2592^2 + 2637^2 .

It is not a de Polignac number, because 13672233 - 21 = 13672231 is a prime.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 13672197 and 13672206.

It is not an unprimeable number, because it can be changed into a prime (13672231) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3588 + ... + 6341.

It is an arithmetic number, because the mean of its divisors is an integer number (1081377).

Almost surely, 213672233 is an apocalyptic number.

It is an amenable number.

13672233 is a deficient number, since it is larger than the sum of its proper divisors (7955307).

13672233 is an equidigital number, since it uses as much as digits as its factorization.

13672233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9958 (or 9949 counting only the distinct ones).

The product of its digits is 4536, while the sum is 27.

The square root of 13672233 is about 3697.5982745561. The cubic root of 13672233 is about 239.1184849273.

Adding to 13672233 its reverse (33227631), we get a palindrome (46899864).

It can be divided in two parts, 1367 and 2233, that added together give a square (3600 = 602).

The spelling of 13672233 in words is "thirteen million, six hundred seventy-two thousand, two hundred thirty-three".

Divisors: 1 3 9 17 27 51 81 153 459 1377 9929 29787 89361 168793 268083 506379 804249 1519137 4557411 13672233