Search a number
-
+
31310002201 = 311079439253
BaseRepresentation
bin11101001010001110…
…001011100000011001
32222211001021220120011
4131022032023200121
51003110330032301
622214510001521
72155614425152
oct351216134031
988731256504
1031310002201
1112307753085
1260997a62a1
132c4c8c292a
141730410929
15c33b42a51
hex74a38b819

31310002201 has 8 divisors (see below), whose sum is σ = 32622061824. Its totient is φ = 30016821360.

The previous prime is 31310002193. The next prime is 31310002211. The reversal of 31310002201 is 10220001313.

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

It is not a de Polignac number, because 31310002201 - 23 = 31310002193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31310002211) 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, 4716310 + ... + 4722943.

It is an arithmetic number, because the mean of its divisors is an integer number (4077757728).

Almost surely, 231310002201 is an apocalyptic number.

31310002201 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

31310002201 is a deficient number, since it is larger than the sum of its proper divisors (1312059623).

31310002201 is a wasteful number, since it uses less digits than its factorization.

31310002201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9439391.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 31310002201 its reverse (10220001313), we get a palindrome (41530003514).

The spelling of 31310002201 in words is "thirty-one billion, three hundred ten million, two thousand, two hundred one".

Divisors: 1 31 107 3317 9439253 292616843 1010000071 31310002201