Search a number
-
+
10020245340 = 2235723857727
BaseRepresentation
bin10010101010100000…
…01100111101011100
3221212022212012111210
421111100030331130
5131010140322330
64334144344420
7503211452160
oct112520147534
927768765453
1010020245340
1142821926a6
121b37915110
13c38c58471
146b0b12ca0
153d9a5b8b0
hex25540cf5c

10020245340 has 48 divisors (see below), whose sum is σ = 32064786432. Its totient is φ = 2290341696.

The previous prime is 10020245311. The next prime is 10020245341. The reversal of 10020245340 is 4354202001.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10020245341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11928444 + ... + 11929283.

It is an arithmetic number, because the mean of its divisors is an integer number (668016384).

Almost surely, 210020245340 is an apocalyptic number.

10020245340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10020245340 is an abundant number, since it is smaller than the sum of its proper divisors (22044541092).

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

10020245340 is a wasteful number, since it uses less digits than its factorization.

10020245340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23857746 (or 23857744 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

Adding to 10020245340 its reverse (4354202001), we get a palindrome (14374447341).

The spelling of 10020245340 in words is "ten billion, twenty million, two hundred forty-five thousand, three hundred forty".

Divisors: 1 2 3 4 5 6 7 10 12 14 15 20 21 28 30 35 42 60 70 84 105 140 210 420 23857727 47715454 71573181 95430908 119288635 143146362 167004089 238577270 286292724 334008178 357865905 477154540 501012267 668016356 715731810 835020445 1002024534 1431463620 1670040890 2004049068 2505061335 3340081780 5010122670 10020245340