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169864044 = 22372022191
BaseRepresentation
bin10100001111111…
…10101101101100
3102211121222122220
422013332231230
5321441122134
624504435340
74131551310
oct1207765554
9384558586
10169864044
118797a409
1248a78b50
132926548c
14187b9b40
15eda5149
hexa1feb6c

169864044 has 24 divisors (see below), whose sum is σ = 452971008. Its totient is φ = 48532560.

The previous prime is 169864033. The next prime is 169864069. The reversal of 169864044 is 440468961.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 169863987 and 169864005.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1011012 + ... + 1011179.

It is an arithmetic number, because the mean of its divisors is an integer number (18873792).

Almost surely, 2169864044 is an apocalyptic number.

169864044 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

169864044 is an abundant number, since it is smaller than the sum of its proper divisors (283106964).

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

169864044 is a wasteful number, since it uses less digits than its factorization.

169864044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2022205 (or 2022203 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 42.

The square root of 169864044 is about 13033.1900929895. The cubic root of 169864044 is about 553.8181098633.

The spelling of 169864044 in words is "one hundred sixty-nine million, eight hundred sixty-four thousand, forty-four".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 2022191 4044382 6066573 8088764 12133146 14155337 24266292 28310674 42466011 56621348 84932022 169864044