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166030371 = 3313473021
BaseRepresentation
bin10011110010101…
…10110000100011
3102120102012212000
421321112300203
5320000432441
624250335043
74054143363
oct1171266043
9376365760
10166030371
11857a1091
124772a483
1328522530
141809c9a3
15e8992b6
hex9e56c23

166030371 has 16 divisors (see below), whose sum is σ = 264892320. Its totient is φ = 102172320.

The previous prime is 166030369. The next prime is 166030387. The reversal of 166030371 is 173030661.

166030371 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 166030371 - 21 = 166030369 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (166830371) 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, 236160 + ... + 236861.

It is an arithmetic number, because the mean of its divisors is an integer number (16555770).

Almost surely, 2166030371 is an apocalyptic number.

166030371 is a deficient number, since it is larger than the sum of its proper divisors (98861949).

166030371 is a wasteful number, since it uses less digits than its factorization.

166030371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 473043 (or 473037 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 27.

The square root of 166030371 is about 12885.2772962013. The cubic root of 166030371 is about 549.6199810150.

The spelling of 166030371 in words is "one hundred sixty-six million, thirty thousand, three hundred seventy-one".

Divisors: 1 3 9 13 27 39 117 351 473021 1419063 4257189 6149273 12771567 18447819 55343457 166030371