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10309109760 = 2113651381
BaseRepresentation
bin10011001100111100…
…01000100000000000
3222121110102001000000
421212132020200000
5132103113003020
64422544000000
7513316662405
oct114636104000
928543361000
1010309109760
114410250824
121bb8600000
13c83a57861
146db2282ac
154050bb090
hex266788800

10309109760 has 336 divisors, whose sum is σ = 37113623820. Its totient is φ = 2747105280.

The previous prime is 10309109753. The next prime is 10309109771. The reversal of 10309109760 is 6790190301.

It can be written as a sum of positive squares in 2 ways, for example, as 10218783744 + 90326016 = 101088^2 + 9504^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 7464270 + ... + 7465650.

Almost surely, 210309109760 is an apocalyptic number.

10309109760 is a gapful number since it is divisible by the number (10) 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 10309109760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18556811910).

10309109760 is an abundant number, since it is smaller than the sum of its proper divisors (26804514060).

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

10309109760 is an frugal number, since it uses more digits than its factorization.

10309109760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1426 (or 1391 counting only the distinct ones).

The product of its (nonzero) digits is 10206, while the sum is 36.

The spelling of 10309109760 in words is "ten billion, three hundred nine million, one hundred nine thousand, seven hundred sixty".