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55182201 = 3314313799
BaseRepresentation
bin1101001010000…
…0001101111001
310211211112202020
43102200031321
5103111312301
65250425053
71240020024
oct322401571
9124745666
1055182201
1129170228
1216592189
13b5810b9
1474861bb
154ca0436
hex34a0379

55182201 has 16 divisors (see below), whose sum is σ = 77721600. Its totient is φ = 34770960.

The previous prime is 55182199. The next prime is 55182209. The reversal of 55182201 is 10228155.

It is not a de Polignac number, because 55182201 - 21 = 55182199 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (55182209) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2901 + ... + 10898.

It is an arithmetic number, because the mean of its divisors is an integer number (4857600).

Almost surely, 255182201 is an apocalyptic number.

It is an amenable number.

55182201 is a deficient number, since it is larger than the sum of its proper divisors (22539399).

55182201 is a wasteful number, since it uses less digits than its factorization.

55182201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13876.

The product of its (nonzero) digits is 800, while the sum is 24.

The square root of 55182201 is about 7428.4723193938. The cubic root of 55182201 is about 380.7147236584.

The spelling of 55182201 in words is "fifty-five million, one hundred eighty-two thousand, two hundred one".

Divisors: 1 3 31 43 93 129 1333 3999 13799 41397 427769 593357 1283307 1780071 18394067 55182201