Search a number
-
+
31200111301303 = 719722625171357
BaseRepresentation
bin1110001100000010101111…
…00011010001001010110111
311002110200221101211120011001
413012001113203101022313
513042140311443120203
6150205044441224131
76400063562213650
oct706012743211267
9132420841746131
1031200111301303
119a3999049849a
1235ba95a192047
131454208ac66c9
1479c1445a8527
153918be64c91d
hex1c60578d12b7

31200111301303 has 8 divisors (see below), whose sum is σ = 35838271431072. Its totient is φ = 26607201514656.

The previous prime is 31200111301297. The next prime is 31200111301321. The reversal of 31200111301303 is 30310311100213.

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

It is not a de Polignac number, because 31200111301303 - 229 = 31199574430391 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 (31200111301363) 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, 11312584300 + ... + 11312587057.

It is an arithmetic number, because the mean of its divisors is an integer number (4479783928884).

Almost surely, 231200111301303 is an apocalyptic number.

31200111301303 is a deficient number, since it is larger than the sum of its proper divisors (4638160129769).

31200111301303 is a wasteful number, since it uses less digits than its factorization.

31200111301303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22625171561.

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 31200111301303 its reverse (30310311100213), we get a palindrome (61510422401516).

The spelling of 31200111301303 in words is "thirty-one trillion, two hundred billion, one hundred eleven million, three hundred one thousand, three hundred three".

Divisors: 1 7 197 1379 22625171357 158376199499 4457158757329 31200111301303