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69689943043 = 712778391387
BaseRepresentation
bin100000011100111011…
…0000010010000000011
320122212210220220200121
41000321312002100003
52120211111134133
652003133201111
75014660512340
oct1007166022003
9218783826617
1069689943043
1127612179756
121160b030197
1367581380b6
1435317857c7
151c2d2b702d
hex1039d82403

69689943043 has 8 divisors (see below), whose sum is σ = 80272781312. Its totient is φ = 59263887816.

The previous prime is 69689942977. The next prime is 69689943047. The reversal of 69689943043 is 34034998696.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 69689943043 - 221 = 69687845891 is a prime.

It is a super-2 number, since 2×696899430432 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (69689943047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39194805 + ... + 39196582.

It is an arithmetic number, because the mean of its divisors is an integer number (10034097664).

Almost surely, 269689943043 is an apocalyptic number.

69689943043 is a deficient number, since it is larger than the sum of its proper divisors (10582838269).

69689943043 is a wasteful number, since it uses less digits than its factorization.

69689943043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78391521.

The product of its (nonzero) digits is 30233088, while the sum is 61.

The spelling of 69689943043 in words is "sixty-nine billion, six hundred eighty-nine million, nine hundred forty-three thousand, forty-three".

Divisors: 1 7 127 889 78391387 548739709 9955706149 69689943043