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55872230 = 2531180233
BaseRepresentation
bin1101010100100…
…0101011100110
310220010121021212
43111020223212
5103300402410
65313311422
71245622541
oct325105346
9126117255
1055872230
11295a16a7
1216865572
13b7631bb
1475c5858
154d89b05
hex3548ae6

55872230 has 16 divisors (see below), whose sum is σ = 103814784. Its totient is φ = 21627840.

The previous prime is 55872203. The next prime is 55872239. The reversal of 55872230 is 3227855.

55872230 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55872239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89807 + ... + 90426.

It is an arithmetic number, because the mean of its divisors is an integer number (6488424).

Almost surely, 255872230 is an apocalyptic number.

55872230 is a deficient number, since it is larger than the sum of its proper divisors (47942554).

55872230 is a wasteful number, since it uses less digits than its factorization.

55872230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180271.

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 55872230 is about 7474.7729062494. The cubic root of 55872230 is about 382.2950444834.

The spelling of 55872230 in words is "fifty-five million, eight hundred seventy-two thousand, two hundred thirty".

Divisors: 1 2 5 10 31 62 155 310 180233 360466 901165 1802330 5587223 11174446 27936115 55872230