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26029452672 = 2732131173997
BaseRepresentation
bin11000001111011110…
…011110110110000000
32111012001000012101200
4120033132132312000
5411302014441142
615542513301200
71611014461056
oct301736366600
974161005350
1026029452672
1110047a47063
125065264800
1325ba8b6502
14138cda01d6
15a2527064c
hex60f79ed80

26029452672 has 192 divisors, whose sum is σ = 75986642160. Its totient is φ = 8551895040.

The previous prime is 26029452671. The next prime is 26029452727. The reversal of 26029452672 is 27625492062.

It is a tau number, because it is divible by the number of its divisors (192).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26029452671) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26107278 + ... + 26108274.

Almost surely, 226029452672 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 26029452672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37993321080).

26029452672 is an abundant number, since it is smaller than the sum of its proper divisors (49957189488).

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

26029452672 is a wasteful number, since it uses less digits than its factorization.

26029452672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1321 (or 1306 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 45.

The spelling of 26029452672 in words is "twenty-six billion, twenty-nine million, four hundred fifty-two thousand, six hundred seventy-two".