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211210234430 = 25131624694111
BaseRepresentation
bin1100010010110100011…
…1000110101000111110
3202012011121022121011012
43010231013012220332
511430024310000210
6241010104155222
721154662241136
oct3045507065076
9665147277135
10211210234430
1181634742258
1234b25a68b12
1316bbc9752a0
14a318c79ac6
1557626e0305
hex312d1c6a3e

211210234430 has 16 divisors (see below), whose sum is σ = 409422916224. Its totient is φ = 77985317280.

The previous prime is 211210234427. The next prime is 211210234441. The reversal of 211210234430 is 34432012112.

211210234430 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 211210234396 and 211210234405.

It is a congruent number.

It is an unprimeable number.

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, 812346926 + ... + 812347185.

It is an arithmetic number, because the mean of its divisors is an integer number (25588932264).

Almost surely, 2211210234430 is an apocalyptic number.

211210234430 is a deficient number, since it is larger than the sum of its proper divisors (198212681794).

211210234430 is a wasteful number, since it uses less digits than its factorization.

211210234430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1624694131.

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

Adding to 211210234430 its reverse (34432012112), we get a palindrome (245642246542).

The spelling of 211210234430 in words is "two hundred eleven billion, two hundred ten million, two hundred thirty-four thousand, four hundred thirty".

Divisors: 1 2 5 10 13 26 65 130 1624694111 3249388222 8123470555 16246941110 21121023443 42242046886 105605117215 211210234430