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126531200260 = 22517877942391
BaseRepresentation
bin111010111010111011…
…0001110010100000100
3110002121011202221221101
41311311312032110010
54033113441402020
6134043322425444
712066363312403
oct1656566162404
9402534687841
10126531200260
1149730622593
1220633062284
13bc163405ca
1461a490d63a
15345856b00a
hex1d75d8e504

126531200260 has 48 divisors (see below), whose sum is σ = 281384530560. Its totient is φ = 47628725760.

The previous prime is 126531200239. The next prime is 126531200267. The reversal of 126531200260 is 62002135621.

It is not an unprimeable number, because it can be changed into a prime (126531200267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2963665 + ... + 3006055.

It is an arithmetic number, because the mean of its divisors is an integer number (5862177720).

Almost surely, 2126531200260 is an apocalyptic number.

126531200260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

126531200260 is an abundant number, since it is smaller than the sum of its proper divisors (154853330300).

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

126531200260 is a wasteful number, since it uses less digits than its factorization.

126531200260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51196 (or 51194 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

Adding to 126531200260 its reverse (62002135621), we get a palindrome (188533335881).

The spelling of 126531200260 in words is "one hundred twenty-six billion, five hundred thirty-one million, two hundred thousand, two hundred sixty".

Divisors: 1 2 4 5 10 17 20 34 68 85 170 340 8779 17558 35116 42391 43895 84782 87790 149243 169564 175580 211955 298486 423910 596972 720647 746215 847820 1441294 1492430 2882588 2984860 3603235 7206470 14412940 372150589 744301178 1488602356 1860752945 3721505890 6326560013 7443011780 12653120026 25306240052 31632800065 63265600130 126531200260