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207397080 = 233251183631
BaseRepresentation
bin11000101110010…
…10000011011000
3112110020212022100
430113022003120
5411043201310
632325123400
75065563132
oct1427120330
9473225270
10207397080
11a7085550
1259559560
1333c77187
141d78a052
151331aec0
hexc5ca0d8

207397080 has 192 divisors, whose sum is σ = 745355520. Its totient is φ = 49593600.

The previous prime is 207397061. The next prime is 207397081. The reversal of 207397080 is 80793702.

207397080 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (207397081) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 328365 + ... + 328995.

It is an arithmetic number, because the mean of its divisors is an integer number (3882060).

Almost surely, 2207397080 is an apocalyptic number.

207397080 is a gapful number since it is divisible by the number (20) 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 207397080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (372677760).

207397080 is an abundant number, since it is smaller than the sum of its proper divisors (537958440).

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

207397080 is a wasteful number, since it uses less digits than its factorization.

207397080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 742 (or 735 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 36.

The square root of 207397080 is about 14401.2874424476. The cubic root of 207397080 is about 591.9261762704.

The spelling of 207397080 in words is "two hundred seven million, three hundred ninety-seven thousand, eighty".