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69190091889 = 3691163720389
BaseRepresentation
bin100000001110000001…
…1010000010001110001
320121120222100211210220
41000130003100101301
52113200130420024
651441355443253
74666411035342
oct1003403202161
9217528324726
1069190091889
1127386004126
12114ab756529
1366a8705999
1434c522c0c9
151bee47ce79
hex101c0d0471

69190091889 has 16 divisors (see below), whose sum is σ = 92447933760. Its totient is φ = 46029579840.

The previous prime is 69190091869. The next prime is 69190091891. The reversal of 69190091889 is 98819009196.

It is a happy number.

It is not a de Polignac number, because 69190091889 - 211 = 69190089841 is a prime.

It is not an unprimeable number, because it can be changed into a prime (69190091819) 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, 3383307 + ... + 3403695.

It is an arithmetic number, because the mean of its divisors is an integer number (5777995860).

Almost surely, 269190091889 is an apocalyptic number.

It is an amenable number.

69190091889 is a deficient number, since it is larger than the sum of its proper divisors (23257841871).

69190091889 is a wasteful number, since it uses less digits than its factorization.

69190091889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22720.

The product of its (nonzero) digits is 2519424, while the sum is 60.

The spelling of 69190091889 in words is "sixty-nine billion, one hundred ninety million, ninety-one thousand, eight hundred eighty-nine".

Divisors: 1 3 691 1637 2073 4911 20389 61167 1131167 3393501 14088799 33376793 42266397 100130379 23063363963 69190091889