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169036668 = 223220992237
BaseRepresentation
bin10100001001101…
…00101101111100
3102210001221201100
422010310231330
5321233133133
624435013100
74121534163
oct1204645574
9383057640
10169036668
1187464829
124873a190
13290359c8
14186423da
15ec8ee13
hexa134b7c

169036668 has 36 divisors (see below), whose sum is σ = 427681800. Its totient is φ = 56293536.

The previous prime is 169036657. The next prime is 169036691. The reversal of 169036668 is 866630961.

169036668 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 74446 + ... + 76682.

It is an arithmetic number, because the mean of its divisors is an integer number (11880050).

Almost surely, 2169036668 is an apocalyptic number.

169036668 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

169036668 is an abundant number, since it is smaller than the sum of its proper divisors (258645132).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

169036668 is a wasteful number, since it uses less digits than its factorization.

169036668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4346 (or 4341 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 45.

The square root of 169036668 is about 13001.4102312018. The cubic root of 169036668 is about 552.9174644950.

The spelling of 169036668 in words is "one hundred sixty-nine million, thirty-six thousand, six hundred sixty-eight".

Divisors: 1 2 3 4 6 9 12 18 36 2099 2237 4198 4474 6297 6711 8396 8948 12594 13422 18891 20133 25188 26844 37782 40266 75564 80532 4695463 9390926 14086389 18781852 28172778 42259167 56345556 84518334 169036668