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101212110434 = 250606055217
BaseRepresentation
bin101111001000010110…
…1100011111001100010
3100200020122102221011202
41132100231203321202
53124240300013214
6114255102441202
710212062513111
oct1362055437142
9320218387152
10101212110434
1139a18663666
1217747893202
13970c984256
144c82023c78
1529758686de
hex1790b63e62

101212110434 has 4 divisors (see below), whose sum is σ = 151818165654. Its totient is φ = 50606055216.

The previous prime is 101212110431. The next prime is 101212110449. The reversal of 101212110434 is 434011212101.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 81176557225 + 20035553209 = 284915^2 + 141547^2 .

It is not an unprimeable number, because it can be changed into a prime (101212110431) 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 as a sum of consecutive naturals, namely, 25303027607 + ... + 25303027610.

Almost surely, 2101212110434 is an apocalyptic number.

101212110434 is a deficient number, since it is larger than the sum of its proper divisors (50606055220).

101212110434 is an equidigital number, since it uses as much as digits as its factorization.

101212110434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50606055219.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 101212110434 its reverse (434011212101), we get a palindrome (535223322535).

The spelling of 101212110434 in words is "one hundred one billion, two hundred twelve million, one hundred ten thousand, four hundred thirty-four".

Divisors: 1 2 50606055217 101212110434