Search a number
-
+
12577081270 = 2513175690987
BaseRepresentation
bin10111011011010011…
…10000011110110110
31012110111222221000211
423231221300132312
5201224213100040
65440002300034
7623446266265
oct135551603666
935414887024
1012577081270
115374486346
12253005761a
131255897630
1487451a5dc
154d92628ea
hex2eda707b6

12577081270 has 32 divisors (see below), whose sum is σ = 25814321568. Its totient is φ = 4370677248.

The previous prime is 12577081267. The next prime is 12577081289. The reversal of 12577081270 is 7218077521.

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, 2843284 + ... + 2847703.

It is an arithmetic number, because the mean of its divisors is an integer number (806697549).

Almost surely, 212577081270 is an apocalyptic number.

12577081270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12577081270 is an abundant number, since it is smaller than the sum of its proper divisors (13237240298).

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

12577081270 is a wasteful number, since it uses less digits than its factorization.

12577081270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5691024.

The product of its (nonzero) digits is 54880, while the sum is 40.

The spelling of 12577081270 in words is "twelve billion, five hundred seventy-seven million, eighty-one thousand, two hundred seventy".

Divisors: 1 2 5 10 13 17 26 34 65 85 130 170 221 442 1105 2210 5690987 11381974 28454935 56909870 73982831 96746779 147965662 193493558 369914155 483733895 739828310 967467790 1257708127 2515416254 6288540635 12577081270