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26862868032 = 263711132359103
BaseRepresentation
bin11001000001001001…
…101101011001000000
32120100010020002100020
4121001021231121000
5420003343234112
620201324253440
71640454416340
oct310111553100
976303202306
1026862868032
1110435430390
1252583a1280
1326c1468ab0
14142b946d20
15a734e848c
hex64126d640

26862868032 has 896 divisors, whose sum is σ = 102248939520. Its totient is φ = 5997404160.

The previous prime is 26862867961. The next prime is 26862868033. The reversal of 26862868032 is 23086826862.

It is a super-2 number, since 2×268628680322 (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (26862868033) by changing a digit.

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 127 ways as a sum of consecutive naturals, for example, 260804493 + ... + 260804595.

It is an arithmetic number, because the mean of its divisors is an integer number (114117120).

Almost surely, 226862868032 is an apocalyptic number.

26862868032 is a gapful number since it is divisible by the number (22) 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 26862868032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51124469760).

26862868032 is an abundant number, since it is smaller than the sum of its proper divisors (75386071488).

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

26862868032 is a wasteful number, since it uses less digits than its factorization.

26862868032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231 (or 221 counting only the distinct ones).

The product of its (nonzero) digits is 2654208, while the sum is 51.

The spelling of 26862868032 in words is "twenty-six billion, eight hundred sixty-two million, eight hundred sixty-eight thousand, thirty-two".