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69509401161 = 323169800387
BaseRepresentation
bin100000010111100010…
…1010100101001001001
320122102020012102210020
41000233011110221021
52114323401314121
651533203411053
75010336106224
oct1005705245111
9218366172706
1069509401161
112752a276992
121157a683a89
136729904695
1435157ca5bb
151c1c5031c6
hex102f154a49

69509401161 has 4 divisors (see below), whose sum is σ = 92679201552. Its totient is φ = 46339600772.

The previous prime is 69509401147. The next prime is 69509401201. The reversal of 69509401161 is 16110490596.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 69509401161 - 219 = 69508876873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (69509401141) 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, 11584900191 + ... + 11584900196.

It is an arithmetic number, because the mean of its divisors is an integer number (23169800388).

Almost surely, 269509401161 is an apocalyptic number.

It is an amenable number.

69509401161 is a deficient number, since it is larger than the sum of its proper divisors (23169800391).

69509401161 is a wasteful number, since it uses less digits than its factorization.

69509401161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23169800390.

The product of its (nonzero) digits is 58320, while the sum is 42.

The spelling of 69509401161 in words is "sixty-nine billion, five hundred nine million, four hundred one thousand, one hundred sixty-one".

Divisors: 1 3 23169800387 69509401161