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26806402255932 = 223213219593930463
BaseRepresentation
bin1100001100001010110100…
…00101011000110000111100
310111220200000021010002121200
412012011122011120300330
512003144002434142212
6133002405144055500
75434461431432235
oct606053205306074
9114820007102550
1026806402255932
1185a5593260892
12300b315a64590
1311c5aa9b0a300
146896187b208c
153174692056dc
hex18615a158c3c

26806402255932 has 216 divisors, whose sum is σ = 78544820390400. Its totient is φ = 7681569158016.

The previous prime is 26806402255889. The next prime is 26806402255933. The reversal of 26806402255932 is 23955220460862.

26806402255932 is a `hidden beast` number, since 2 + 6 + 8 + 0 + 6 + 40 + 2 + 2 + 5 + 593 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26806402255933) 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 71 ways as a sum of consecutive naturals, for example, 4854933 + ... + 8785395.

Almost surely, 226806402255932 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26806402255932, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39272410195200).

26806402255932 is an abundant number, since it is smaller than the sum of its proper divisors (51738418134468).

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

26806402255932 is a wasteful number, since it uses less digits than its factorization.

26806402255932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3930577 (or 3930559 counting only the distinct ones).

The product of its (nonzero) digits is 12441600, while the sum is 54.

The spelling of 26806402255932 in words is "twenty-six trillion, eight hundred six billion, four hundred two million, two hundred fifty-five thousand, nine hundred thirty-two".