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211230000010 = 2521123000001
BaseRepresentation
bin1100010010111001001…
…0100000001110001010
3202012012222111210102201
43010232102200032022
511430044340000020
6241012051550414
721155322242551
oct3045622401612
9665188453381
10211230000010
1181644912447
1234b305bb40a
1316bc3aa5ab3
14a31b742d98
1557642e6a0a
hex312e4a038a

211230000010 has 8 divisors (see below), whose sum is σ = 380214000036. Its totient is φ = 84492000000.

The previous prime is 211229999963. The next prime is 211230000017. The reversal of 211230000010 is 10000032112.

It can be written as a sum of positive squares in 2 ways, for example, as 195973550721 + 15256449289 = 442689^2 + 123517^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×2112300000102 (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (10), and also a Moran number because the ratio is a prime number: 21123000001 = 211230000010 / (2 + 1 + 1 + 2 + 3 + 0 + 0 + 0 + 0 + 0 + 1 + 0).

It is not an unprimeable number, because it can be changed into a prime (211230000017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10561499991 + ... + 10561500010.

Almost surely, 2211230000010 is an apocalyptic number.

211230000010 is a deficient number, since it is larger than the sum of its proper divisors (168984000026).

211230000010 is a wasteful number, since it uses less digits than its factorization.

211230000010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21123000008.

The product of its (nonzero) digits is 12, while the sum is 10.

Adding to 211230000010 its reverse (10000032112), we get a palindrome (221230032122).

The spelling of 211230000010 in words is "two hundred eleven billion, two hundred thirty million, ten", and thus it is an aban number.

Divisors: 1 2 5 10 21123000001 42246000002 105615000005 211230000010