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91422422030 = 2561233643231
BaseRepresentation
bin101010100100100110…
…0110111010000001110
322201222101102020022202
41111021030313100032
52444213120001110
6105555431441502
76414350523362
oct1251114672016
9281871366282
1091422422030
1135854634895
1215875226292
13880c721714
1445d3ba92a2
1525a11a00a5
hex154933740e

91422422030 has 32 divisors (see below), whose sum is σ = 167976177408. Its totient is φ = 35815046400.

The previous prime is 91422422029. The next prime is 91422422033. The reversal of 91422422030 is 3022422419.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 91422421984 and 91422422002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91422422033) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 179486 + ... + 463745.

It is an arithmetic number, because the mean of its divisors is an integer number (5249255544).

Almost surely, 291422422030 is an apocalyptic number.

91422422030 is a deficient number, since it is larger than the sum of its proper divisors (76553755378).

91422422030 is a wasteful number, since it uses less digits than its factorization.

91422422030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 643532.

The product of its (nonzero) digits is 6912, while the sum is 29.

Adding to 91422422030 its reverse (3022422419), we get a palindrome (94444844449).

The spelling of 91422422030 in words is "ninety-one billion, four hundred twenty-two million, four hundred twenty-two thousand, thirty".

Divisors: 1 2 5 10 61 122 233 305 466 610 1165 2330 14213 28426 71065 142130 643231 1286462 3216155 6432310 39237091 78474182 149872823 196185455 299745646 392370910 749364115 1498728230 9142242203 18284484406 45711211015 91422422030