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1210210234430 = 25241502161923
BaseRepresentation
bin10001100111000110001…
…001101011000000111110
311021200202122001202112012
4101213012021223000332
5124312002310000210
62323543553211222
7153302065156241
oct21470611530076
94250678052465
101210210234430
1142727a14436a
12176668b60b12
138a178a03942
1442808575258
1521731275305
hex119c626b03e

1210210234430 has 16 divisors (see below), whose sum is σ = 2187417340944. Its totient is φ = 482075445120.

The previous prime is 1210210234403. The next prime is 1210210234433. The reversal of 1210210234430 is 344320120121.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1210210234396 and 1210210234405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1210210234433) 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 7 ways as a sum of consecutive naturals, for example, 251078552 + ... + 251083371.

It is an arithmetic number, because the mean of its divisors is an integer number (136713583809).

Almost surely, 21210210234430 is an apocalyptic number.

1210210234430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1210210234430 is a deficient number, since it is larger than the sum of its proper divisors (977207106514).

1210210234430 is a wasteful number, since it uses less digits than its factorization.

1210210234430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 502162171.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 1210210234430 its reverse (344320120121), we get a palindrome (1554530354551).

The spelling of 1210210234430 in words is "one trillion, two hundred ten billion, two hundred ten million, two hundred thirty-four thousand, four hundred thirty".

Divisors: 1 2 5 10 241 482 1205 2410 502161923 1004323846 2510809615 5021619230 121021023443 242042046886 605105117215 1210210234430