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172432230 = 2353125981
BaseRepresentation
bin10100100011100…
…01101101100110
3110000110110112220
422101301231212
5323120312410
625035453210
74162435605
oct1221615546
9400413486
10172432230
1189373983
12498b7206
1329954409
1418c87a3c
1510211070
hexa471b66

172432230 has 48 divisors (see below), whose sum is σ = 427689072. Its totient is φ = 44491200.

The previous prime is 172432217. The next prime is 172432243. The reversal of 172432230 is 32234271.

172432230 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (172432217) and next prime (172432243).

It is a self number, because there is not a number n which added to its sum of digits gives 172432230.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25840 + ... + 31820.

It is an arithmetic number, because the mean of its divisors is an integer number (8910189).

Almost surely, 2172432230 is an apocalyptic number.

172432230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 172432230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (213844536).

172432230 is an abundant number, since it is smaller than the sum of its proper divisors (255256842).

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

172432230 is a wasteful number, since it uses less digits than its factorization.

172432230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6053 (or 6022 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 24.

The square root of 172432230 is about 13131.3453233094. The cubic root of 172432230 is about 556.5952318883.

The spelling of 172432230 in words is "one hundred seventy-two million, four hundred thirty-two thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 31 62 93 155 186 310 465 930 961 1922 2883 4805 5766 5981 9610 11962 14415 17943 28830 29905 35886 59810 89715 179430 185411 370822 556233 927055 1112466 1854110 2781165 5562330 5747741 11495482 17243223 28738705 34486446 57477410 86216115 172432230