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212144304301 = 971218480231
BaseRepresentation
bin1100010110010011001…
…0010011000010101101
3202021120200221021010121
43011210302103002231
511433432420214201
6241242512404541
721220063555666
oct3054462230255
9667520837117
10212144304301
1181a73a24826
1235146846751
131700b33a257
14a3a6d4436d
1557b96eb9a1
hex3164c930ad

212144304301 has 4 divisors (see below), whose sum is σ = 212362785504. Its totient is φ = 211925823100.

The previous prime is 212144304271. The next prime is 212144304313. The reversal of 212144304301 is 103403441212.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 212144304301 - 215 = 212144271533 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212144304371) 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 3 ways as a sum of consecutive naturals, for example, 109239145 + ... + 109241086.

It is an arithmetic number, because the mean of its divisors is an integer number (53090696376).

Almost surely, 2212144304301 is an apocalyptic number.

It is an amenable number.

212144304301 is a deficient number, since it is larger than the sum of its proper divisors (218481203).

212144304301 is an equidigital number, since it uses as much as digits as its factorization.

212144304301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218481202.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 212144304301 its reverse (103403441212), we get a palindrome (315547745513).

The spelling of 212144304301 in words is "two hundred twelve billion, one hundred forty-four million, three hundred four thousand, three hundred one".

Divisors: 1 971 218480231 212144304301