Search a number
-
+
207428752869 = 31314935695879
BaseRepresentation
bin1100000100101110110…
…1111001010111100101
3201211102001210102122120
43001023231321113211
511344303230042434
6235142542020153
720662164210432
oct3011355712745
9654361712576
10207428752869
117aa7413a188
123424b577659
13167393c2b30
14a07a968b89
1555e0731349
hex304bb795e5

207428752869 has 16 divisors (see below), whose sum is σ = 299845392000. Its totient is φ = 126791758656.

The previous prime is 207428752837. The next prime is 207428752873. The reversal of 207428752869 is 968257824702.

It is not a de Polignac number, because 207428752869 - 25 = 207428752837 is a prime.

It is a super-2 number, since 2×2074287528692 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (207428752879) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17842129 + ... + 17853750.

It is an arithmetic number, because the mean of its divisors is an integer number (18740337000).

Almost surely, 2207428752869 is an apocalyptic number.

It is an amenable number.

207428752869 is a deficient number, since it is larger than the sum of its proper divisors (92416639131).

207428752869 is a wasteful number, since it uses less digits than its factorization.

207428752869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35696044.

The product of its (nonzero) digits is 27095040, while the sum is 60.

The spelling of 207428752869 in words is "two hundred seven billion, four hundred twenty-eight million, seven hundred fifty-two thousand, eight hundred sixty-nine".

Divisors: 1 3 13 39 149 447 1937 5811 35695879 107087637 464046427 1392139281 5318685971 15956057913 69142917623 207428752869