Search a number
-
+
252100404230140 = 225257459431067557
BaseRepresentation
bin111001010100100010110011…
…000010101011011111111100
31020001121120012121220112102201
4321110202303002223133330
5231020403111440331030
62252101154335001244
7104046440013313024
oct7124426302533774
91201546177815381
10252100404230140
11733661a9a42414
12243368b7369224
13aa88c7371878b
144637a206c4a84
151e22a9b6632ca
hexe548b30ab7fc

252100404230140 has 48 divisors (see below), whose sum is σ = 531482879172672. Its totient is φ = 100445507076096.

The previous prime is 252100404230113. The next prime is 252100404230159. The reversal of 252100404230140 is 41032404001252.

It is a super-2 number, since 2×2521004042301402 (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 252100404230099 and 252100404230108.

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, 235613242 + ... + 236680798.

It is an arithmetic number, because the mean of its divisors is an integer number (11072559982764).

Almost surely, 2252100404230140 is an apocalyptic number.

252100404230140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

252100404230140 is an abundant number, since it is smaller than the sum of its proper divisors (279382474942532).

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

252100404230140 is a wasteful number, since it uses less digits than its factorization.

252100404230140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1113766 (or 1113764 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 28.

Adding to 252100404230140 its reverse (41032404001252), we get a palindrome (293132808231392).

The spelling of 252100404230140 in words is "two hundred fifty-two trillion, one hundred billion, four hundred four million, two hundred thirty thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 257 514 1028 1285 2570 5140 45943 91886 183772 229715 459430 918860 1067557 2135114 4270228 5337785 10675570 11807351 21351140 23614702 47229404 59036755 118073510 236147020 274362149 548724298 1097448596 1371810745 2743621490 5487242980 49046771251 98093542502 196187085004 245233856255 490467712510 980935425020 12605020211507 25210040423014 50420080846028 63025101057535 126050202115070 252100404230140