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166284924 = 223131139433
BaseRepresentation
bin10011110100101…
…00111001111100
3102120220011000220
421322110321330
5320032104144
624300021340
74056253461
oct1172247174
9376804026
10166284924
1185955363
1247831850
13285b1360
1418127668
15e8e9919
hex9e94e7c

166284924 has 48 divisors (see below), whose sum is σ = 421586592. Its totient is φ = 50706432.

The previous prime is 166284893. The next prime is 166284931. The reversal of 166284924 is 429482661.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12912 + ... + 22344.

It is an arithmetic number, because the mean of its divisors is an integer number (8783054).

Almost surely, 2166284924 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 166284924, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (210793296).

166284924 is an abundant number, since it is smaller than the sum of its proper divisors (255301668).

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

166284924 is a wasteful number, since it uses less digits than its factorization.

166284924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9566 (or 9564 counting only the distinct ones).

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

The square root of 166284924 is about 12895.1511817427. The cubic root of 166284924 is about 549.9007247816.

Adding to 166284924 its sum of digits (42), we get a triangular number (166284966 = T18236).

The spelling of 166284924 in words is "one hundred sixty-six million, two hundred eighty-four thousand, nine hundred twenty-four".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 113 156 226 339 452 678 1356 1469 2938 4407 5876 8814 9433 17628 18866 28299 37732 56598 113196 122629 245258 367887 490516 735774 1065929 1471548 2131858 3197787 4263716 6395574 12791148 13857077 27714154 41571231 55428308 83142462 166284924