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212430226155 = 3572023145011
BaseRepresentation
bin1100010111010111010…
…1000000001011101011
3202022022121221121011220
43011311311000023223
511440024114214110
6241331124553123
721230135062260
oct3056565001353
9668277847156
10212430226155
1182100363084
12352065527a3
1317055649194
14a3d2cd1267
1557d4879370
hex3175d402eb

212430226155 has 16 divisors (see below), whose sum is σ = 388443842304. Its totient is φ = 97110960480.

The previous prime is 212430226111. The next prime is 212430226157. The reversal of 212430226155 is 551622034212.

It is a happy number.

212430226155 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 212430226155 - 28 = 212430225899 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212430226157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1011572401 + ... + 1011572610.

It is an arithmetic number, because the mean of its divisors is an integer number (24277740144).

Almost surely, 2212430226155 is an apocalyptic number.

212430226155 is a deficient number, since it is larger than the sum of its proper divisors (176013616149).

212430226155 is a wasteful number, since it uses less digits than its factorization.

212430226155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2023145026.

The product of its (nonzero) digits is 28800, while the sum is 33.

The spelling of 212430226155 in words is "two hundred twelve billion, four hundred thirty million, two hundred twenty-six thousand, one hundred fifty-five".

Divisors: 1 3 5 7 15 21 35 105 2023145011 6069435033 10115725055 14162015077 30347175165 42486045231 70810075385 212430226155