Search a number
-
+
2576426871680 = 275291391576361
BaseRepresentation
bin100101011111011111000…
…000100010101110000000
3100010022012121200220121122
4211133133000202232000
5314203010234343210
65251332201211412
7354066155033324
oct45373700425600
910108177626548
102576426871680
11903724890152
123573b4190b68
13158c57484c2c
148c9b2095984
1547043579b55
hex257df022b80

2576426871680 has 256 divisors, whose sum is σ = 6459389496000. Its totient is φ = 981428797440.

The previous prime is 2576426871661. The next prime is 2576426871701. The reversal of 2576426871680 is 861786246752.

It is a super-2 number, since 2×25764268716802 (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 405031700 + ... + 405038060.

Almost surely, 22576426871680 is an apocalyptic number.

2576426871680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2576426871680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3229694748000).

2576426871680 is an abundant number, since it is smaller than the sum of its proper divisors (3882962624320).

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

2576426871680 is a wasteful number, since it uses less digits than its factorization.

2576426871680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6705 (or 6693 counting only the distinct ones).

The product of its (nonzero) digits is 54190080, while the sum is 62.

The spelling of 2576426871680 in words is "two trillion, five hundred seventy-six billion, four hundred twenty-six million, eight hundred seventy-one thousand, six hundred eighty".