Search a number
-
+
313001202020 = 225131203850777
BaseRepresentation
bin1001000111000000101…
…00110101000101100100
31002220220120222112001212
410203200110311011210
520112011301431040
6355442450010552
731420314214403
oct4434024650544
91086816875055
10313001202020
1111081a022861
12507b3576a58
1323692531760
1411213b0163a
15821dc9bd65
hex48e0535164

313001202020 has 24 divisors (see below), whose sum is σ = 707864257464. Its totient is φ = 115569674496.

The previous prime is 313001202001. The next prime is 313001202047. The reversal of 313001202020 is 20202100313.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 37039396 + 312964162624 = 6086^2 + 559432^2 .

It is a junction number, because it is equal to n+sod(n) for n = 313001201986 and 313001202004.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 601925129 + ... + 601925648.

It is an arithmetic number, because the mean of its divisors is an integer number (29494344061).

Almost surely, 2313001202020 is an apocalyptic number.

It is an amenable number.

313001202020 is an abundant number, since it is smaller than the sum of its proper divisors (394863055444).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

313001202020 is a wasteful number, since it uses less digits than its factorization.

313001202020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1203850799 (or 1203850797 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 313001202020 its reverse (20202100313), we get a palindrome (333203302333).

The spelling of 313001202020 in words is "three hundred thirteen billion, one million, two hundred two thousand, twenty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 1203850777 2407701554 4815403108 6019253885 12038507770 15650060101 24077015540 31300120202 62600240404 78250300505 156500601010 313001202020