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207041407 = 1297159631
BaseRepresentation
bin11000101011100…
…11001101111111
3112102120210102021
430111303031333
5411000311112
632313341011
75062552156
oct1425631577
9472523367
10207041407
11a6962301
1259407767
1333b81311
141d6d659d
151329a907
hexc57337f

207041407 has 4 divisors (see below), whose sum is σ = 207202336. Its totient is φ = 206880480.

The previous prime is 207041399. The next prime is 207041437. The reversal of 207041407 is 704140702.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 207041407 - 23 = 207041399 is a prime.

It is a super-2 number, since 2×2070414072 = 85732288425079298, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (207041437) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78519 + ... + 81112.

It is an arithmetic number, because the mean of its divisors is an integer number (51800584).

Almost surely, 2207041407 is an apocalyptic number.

207041407 is a deficient number, since it is larger than the sum of its proper divisors (160929).

207041407 is a wasteful number, since it uses less digits than its factorization.

207041407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160928.

The product of its (nonzero) digits is 1568, while the sum is 25.

The square root of 207041407 is about 14388.9334907074. The cubic root of 207041407 is about 591.5876105531.

The spelling of 207041407 in words is "two hundred seven million, forty-one thousand, four hundred seven".

Divisors: 1 1297 159631 207041407