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171868030 = 25312811973
BaseRepresentation
bin10100011111001…
…11111101111110
3102222101210121121
422033213331332
5322444234110
625015421154
74154565655
oct1217477576
9388353547
10171868030
1189018aa4
12496847ba
13297b7679
1418b7c19c
151014dcda
hexa3e7f7e

171868030 has 32 divisors (see below), whose sum is σ = 320640768. Its totient is φ = 66259200.

The previous prime is 171868027. The next prime is 171868031. The reversal of 171868030 is 30868171.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (171868031) 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, 86124 + ... + 88096.

It is an arithmetic number, because the mean of its divisors is an integer number (10020024).

Almost surely, 2171868030 is an apocalyptic number.

171868030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

171868030 is a deficient number, since it is larger than the sum of its proper divisors (148772738).

171868030 is a wasteful number, since it uses less digits than its factorization.

171868030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2292.

The product of its (nonzero) digits is 8064, while the sum is 34.

The square root of 171868030 is about 13109.8447740620. The cubic root of 171868030 is about 555.9875068359.

The spelling of 171868030 in words is "one hundred seventy-one million, eight hundred sixty-eight thousand, thirty".

Divisors: 1 2 5 10 31 62 155 281 310 562 1405 1973 2810 3946 8711 9865 17422 19730 43555 61163 87110 122326 305815 554413 611630 1108826 2772065 5544130 17186803 34373606 85934015 171868030