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69140252159 = 11191197167047
BaseRepresentation
bin100000001100100010…
…1001000010111111111
320121110111120201112222
41000121011020113333
52113044401032114
651432415315555
74665234306116
oct1003105102777
9217414521488
1069140252159
112735a962870
1211496b1bbbb
13669b2a5514
1434bc776c7d
151be9dd598e
hex10191485ff

69140252159 has 16 divisors (see below), whose sum is σ = 76205961216. Its totient is φ = 62207930400.

The previous prime is 69140252123. The next prime is 69140252171. The reversal of 69140252159 is 95125204196.

It is not a de Polignac number, because 69140252159 - 216 = 69140186623 is a prime.

It is a super-3 number, since 3×691402521593 (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69140252119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 330374 + ... + 497420.

It is an arithmetic number, because the mean of its divisors is an integer number (4762872576).

Almost surely, 269140252159 is an apocalyptic number.

69140252159 is a deficient number, since it is larger than the sum of its proper divisors (7065709057).

69140252159 is a wasteful number, since it uses less digits than its factorization.

69140252159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167446.

The product of its (nonzero) digits is 194400, while the sum is 44.

The spelling of 69140252159 in words is "sixty-nine billion, one hundred forty million, two hundred fifty-two thousand, one hundred fifty-nine".

Divisors: 1 11 191 197 2101 2167 37627 167047 413897 1837517 31905977 32908259 350965747 361990849 6285477469 69140252159