Search a number
-
+
7240151225020 = 2257103502090931
BaseRepresentation
bin110100101011011101010…
…1001000101001010111100
3221122011002120212020002211
41221112322221011022330
51422110312203200040
623222025103430204
71345040460666250
oct151267251051274
927564076766084
107240151225020
11234159268613a
1298b233bb5364
134069881376cc
141b05d4a0c260
15c84eda7c8ea
hex695baa452bc

7240151225020 has 48 divisors (see below), whose sum is σ = 17545065527808. Its totient is φ = 2458237193280.

The previous prime is 7240151225017. The next prime is 7240151225039. The reversal of 7240151225020 is 205221510427.

It is a happy number.

It is a super-2 number, since 2×72401512250202 (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 251031046 + ... + 251059885.

It is an arithmetic number, because the mean of its divisors is an integer number (365522198496).

Almost surely, 27240151225020 is an apocalyptic number.

7240151225020 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

7240151225020 is an abundant number, since it is smaller than the sum of its proper divisors (10304914302788).

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

7240151225020 is a wasteful number, since it uses less digits than its factorization.

7240151225020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502091050 (or 502091048 counting only the distinct ones).

The product of its (nonzero) digits is 11200, while the sum is 31.

Adding to 7240151225020 its reverse (205221510427), we get a palindrome (7445372735447).

The spelling of 7240151225020 in words is "seven trillion, two hundred forty billion, one hundred fifty-one million, two hundred twenty-five thousand, twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 103 140 206 412 515 721 1030 1442 2060 2884 3605 7210 14420 502090931 1004181862 2008363724 2510454655 3514636517 5020909310 7029273034 10041818620 14058546068 17573182585 35146365170 51715365893 70292730340 103430731786 206861463572 258576829465 362007561251 517153658930 724015122502 1034307317860 1448030245004 1810037806255 3620075612510 7240151225020