Search a number
-
+
1212033431401 = 13808631152979
BaseRepresentation
bin10001101000110010110…
…100100111011101101001
311021212110200201202120221
4101220302310213131221
5124324221024301101
62324444522450041
7153365214116302
oct21506264473551
94255420652527
101212033431401
11428025302221
12176a97663921
138a3a9656310
144293c7697a9
15217db361aa1
hex11a32d27769

1212033431401 has 8 divisors (see below), whose sum is σ = 1305284046080. Its totient is φ = 1118785284432.

The previous prime is 1212033431393. The next prime is 1212033431501. The reversal of 1212033431401 is 1041343302121.

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

It is a cyclic number.

It is not a de Polignac number, because 1212033431401 - 23 = 1212033431393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1212033431501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 474730 + ... + 1627708.

It is an arithmetic number, because the mean of its divisors is an integer number (163160505760).

Almost surely, 21212033431401 is an apocalyptic number.

It is an amenable number.

1212033431401 is a deficient number, since it is larger than the sum of its proper divisors (93250614679).

1212033431401 is a wasteful number, since it uses less digits than its factorization.

1212033431401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1233855.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 1212033431401 its reverse (1041343302121), we get a palindrome (2253376733522).

The spelling of 1212033431401 in words is "one trillion, two hundred twelve billion, thirty-three million, four hundred thirty-one thousand, four hundred one".

Divisors: 1 13 80863 1051219 1152979 14988727 93233340877 1212033431401