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166591842 = 2373337879
BaseRepresentation
bin10011110110111…
…11110101100010
3102121110202001020
421323133311202
5320121414332
624310350310
74062002334
oct1173376542
9377422036
10166591842
1186044a0a
124795b396
132868ac71
14181a7454
15e95a82c
hex9edfd62

166591842 has 16 divisors (see below), whose sum is σ = 333647040. Its totient is φ = 55453392.

The previous prime is 166591819. The next prime is 166591877. The reversal of 166591842 is 248195661.

It is a junction number, because it is equal to n+sod(n) for n = 166591794 and 166591803.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14542 + ... + 23337.

It is an arithmetic number, because the mean of its divisors is an integer number (20852940).

Almost surely, 2166591842 is an apocalyptic number.

166591842 is an abundant number, since it is smaller than the sum of its proper divisors (167055198).

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

166591842 is a wasteful number, since it uses less digits than its factorization.

166591842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38617.

The product of its digits is 103680, while the sum is 42.

The square root of 166591842 is about 12907.0462151493. The cubic root of 166591842 is about 550.2388406197.

The spelling of 166591842 in words is "one hundred sixty-six million, five hundred ninety-one thousand, eight hundred forty-two".

Divisors: 1 2 3 6 733 1466 2199 4398 37879 75758 113637 227274 27765307 55530614 83295921 166591842