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55230302 = 2191453429
BaseRepresentation
bin1101001010101…
…1111101011110
310211220222201202
43102223331132
5103114332202
65251435502
71240310201
oct322537536
9124828652
1055230302
11291a3386
12165b5b92
13b599c6a
147499938
154cae802
hex34abf5e

55230302 has 8 divisors (see below), whose sum is σ = 87205800. Its totient is φ = 26161704.

The previous prime is 55230299. The next prime is 55230319. The reversal of 55230302 is 20303255.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×552303022 = 6100772518022408, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 726677 + ... + 726752.

It is an arithmetic number, because the mean of its divisors is an integer number (10900725).

Almost surely, 255230302 is an apocalyptic number.

55230302 is a deficient number, since it is larger than the sum of its proper divisors (31975498).

55230302 is a wasteful number, since it uses less digits than its factorization.

55230302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1453450.

The product of its (nonzero) digits is 900, while the sum is 20.

The square root of 55230302 is about 7431.7092246670. The cubic root of 55230302 is about 380.8253114943.

Adding to 55230302 its reverse (20303255), we get a palindrome (75533557).

The spelling of 55230302 in words is "fifty-five million, two hundred thirty thousand, three hundred two".

Divisors: 1 2 19 38 1453429 2906858 27615151 55230302