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126804207530 = 2572111312171487
BaseRepresentation
bin111011000011000011…
…1101010011110101010
3110010022012111011111202
41312012013222132222
54034143334120110
6134130354124202
712106216660100
oct1660607523652
9403265434452
10126804207530
114986073aa30
12206aa580662
13bc5aa7a180
1461ccc97c70
1534724e70a5
hex1d861ea7aa

126804207530 has 192 divisors, whose sum is σ = 312397005312. Its totient is φ = 36428636160.

The previous prime is 126804207511. The next prime is 126804207583. The reversal of 126804207530 is 35702408621.

It is a happy number.

It is a super-3 number, since 3×1268042075303 (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 85274447 + ... + 85275933.

It is an arithmetic number, because the mean of its divisors is an integer number (1627067736).

Almost surely, 2126804207530 is an apocalyptic number.

126804207530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

126804207530 is an abundant number, since it is smaller than the sum of its proper divisors (185592797782).

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

126804207530 is a wasteful number, since it uses less digits than its factorization.

126804207530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2749 (or 2742 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 38.

The spelling of 126804207530 in words is "one hundred twenty-six billion, eight hundred four million, two hundred seven thousand, five hundred thirty".