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10387340280 = 23325194779409
BaseRepresentation
bin10011010110010001…
…00011101111111000
3222210220121120002200
421223020203233320
5132233124342110
64434420430200
7515256635622
oct115310435770
928726546080
1010387340280
114450423549
12201a848360
13c970186c5
1470778dc12
1540bdc06c0
hex26b223bf8

10387340280 has 384 divisors, whose sum is σ = 36840960000. Its totient is φ = 2529626112.

The previous prime is 10387340269. The next prime is 10387340303. The reversal of 10387340280 is 8204378301.

10387340280 is a `hidden beast` number, since 1 + 0 + 38 + 7 + 340 + 280 = 666.

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

It is a congruent number.

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, 25396716 + ... + 25397124.

It is an arithmetic number, because the mean of its divisors is an integer number (95940000).

Almost surely, 210387340280 is an apocalyptic number.

10387340280 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 10387340280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18420480000).

10387340280 is an abundant number, since it is smaller than the sum of its proper divisors (26453619720).

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

10387340280 is a wasteful number, since it uses less digits than its factorization.

10387340280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 571 (or 564 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The spelling of 10387340280 in words is "ten billion, three hundred eighty-seven million, three hundred forty thousand, two hundred eighty".