Search a number
-
+
12571132040 = 2351313976043
BaseRepresentation
bin10111011010100110…
…00100000010001000
31012110002210200012222
423231103010002020
5201221202211130
65435230553212
7623344600505
oct135523040210
935402720188
1012571132040
115371092625
12252a068808
13125459378c
1487380c4ac
154d8989ce5
hex2ed4c4088

12571132040 has 64 divisors (see below), whose sum is σ = 28577482560. Its totient is φ = 4976674560.

The previous prime is 12571132039. The next prime is 12571132073. The reversal of 12571132040 is 4023117521.

It is a super-2 number, since 2×125711320402 (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2077259 + ... + 2083301.

It is an arithmetic number, because the mean of its divisors is an integer number (446523165).

Almost surely, 212571132040 is an apocalyptic number.

12571132040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12571132040 is an abundant number, since it is smaller than the sum of its proper divisors (16006350520).

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

12571132040 is a wasteful number, since it uses less digits than its factorization.

12571132040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6582 (or 6578 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 26.

Adding to 12571132040 its reverse (4023117521), we get a palindrome (16594249561).

It can be divided in two parts, 125711 and 32040, that added together give a palindrome (157751).

The spelling of 12571132040 in words is "twelve billion, five hundred seventy-one million, one hundred thirty-two thousand, forty".

Divisors: 1 2 4 5 8 10 20 40 131 262 397 524 655 794 1048 1310 1588 1985 2620 3176 3970 5240 6043 7940 12086 15880 24172 30215 48344 52007 60430 104014 120860 208028 241720 260035 416056 520070 791633 1040140 1583266 2080280 2399071 3166532 3958165 4798142 6333064 7916330 9596284 11995355 15832660 19192568 23990710 31665320 47981420 95962840 314278301 628556602 1257113204 1571391505 2514226408 3142783010 6285566020 12571132040