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55054233 = 32133143353
BaseRepresentation
bin1101001000000…
…0111110011001
310211121001012200
43102000332121
5103043213413
65244000413
71235644653
oct322007631
9124531180
1055054233
1129093073
1216530109
13b537a90
1474516d3
154c77573
hex3480f99

55054233 has 48 divisors (see below), whose sum is σ = 90714624. Its totient is φ = 31933440.

The previous prime is 55054199. The next prime is 55054271. The reversal of 55054233 is 33245055.

It is not a de Polignac number, because 55054233 - 210 = 55053209 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55054197 and 55054206.

It is not an unprimeable number, because it can be changed into a prime (55054033) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 155785 + ... + 156137.

It is an arithmetic number, because the mean of its divisors is an integer number (1889888).

Almost surely, 255054233 is an apocalyptic number.

It is an amenable number.

55054233 is a deficient number, since it is larger than the sum of its proper divisors (35660391).

55054233 is a wasteful number, since it uses less digits than its factorization.

55054233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 446 (or 443 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 27.

The square root of 55054233 is about 7419.8539743043. The cubic root of 55054233 is about 380.4202022993.

Adding to 55054233 its reverse (33245055), we get a palindrome (88299288).

The spelling of 55054233 in words is "fifty-five million, fifty-four thousand, two hundred thirty-three".

Divisors: 1 3 9 13 31 39 43 93 117 129 279 353 387 403 559 1059 1209 1333 1677 3177 3627 3999 4589 5031 10943 11997 13767 15179 17329 32829 41301 45537 51987 98487 136611 142259 155961 197327 426777 470549 591981 1280331 1411647 1775943 4234941 6117137 18351411 55054233