Search a number
-
+
20202003312 = 2431724757357
BaseRepresentation
bin10010110100001000…
…100001101101110000
31221010220122002200220
4102310020201231300
5312333203101222
613140343013040
71313424123561
oct226410415560
957126562626
1020202003312
118627560107
123ab973a180
131b9c4b3a1a
14d9906a168
157d386db5c
hex4b4221b70

20202003312 has 40 divisors (see below), whose sum is σ = 55258423056. Its totient is φ = 6337883136.

The previous prime is 20202003299. The next prime is 20202003323. The reversal of 20202003312 is 21330020202.

It is a junction number, because it is equal to n+sod(n) for n = 20202003291 and 20202003300.

It is a congruent number.

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, 12377863 + ... + 12379494.

Almost surely, 220202003312 is an apocalyptic number.

It is an amenable number.

20202003312 is an abundant number, since it is smaller than the sum of its proper divisors (35056419744).

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

20202003312 is a wasteful number, since it uses less digits than its factorization.

20202003312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24757385 (or 24757379 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

Adding to 20202003312 its reverse (21330020202), we get a palindrome (41532023514).

The spelling of 20202003312 in words is "twenty billion, two hundred two million, three thousand, three hundred twelve".

Divisors: 1 2 3 4 6 8 12 16 17 24 34 48 51 68 102 136 204 272 408 816 24757357 49514714 74272071 99029428 148544142 198058856 297088284 396117712 420875069 594176568 841750138 1188353136 1262625207 1683500276 2525250414 3367000552 5050500828 6734001104 10101001656 20202003312