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161094069 = 3321128277
BaseRepresentation
bin10011001101000…
…01100110110101
3102020010102112000
421212201212311
5312220002234
623552445513
73664164003
oct1146414665
9366112460
10161094069
1182a2a3a4
1245b49899
13274b4746
1417575a73
15e221899
hex99a19b5

161094069 has 16 divisors (see below), whose sum is σ = 239797440. Its totient is φ = 106883280.

The previous prime is 161094067. The next prime is 161094079. The reversal of 161094069 is 960490161.

161094069 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 161094069 - 21 = 161094067 is a prime.

It is a super-2 number, since 2×1610940692 = 51902598133953522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161094067) 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, 8442 + ... + 19835.

It is an arithmetic number, because the mean of its divisors is an integer number (14987340).

Almost surely, 2161094069 is an apocalyptic number.

It is an amenable number.

161094069 is a deficient number, since it is larger than the sum of its proper divisors (78703371).

161094069 is a wasteful number, since it uses less digits than its factorization.

161094069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28497 (or 28491 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 161094069 is about 12692.2838370405. The cubic root of 161094069 is about 544.1181136356.

The spelling of 161094069 in words is "one hundred sixty-one million, ninety-four thousand, sixty-nine".

Divisors: 1 3 9 27 211 633 1899 5697 28277 84831 254493 763479 5966447 17899341 53698023 161094069