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172941230 = 257111911821
BaseRepresentation
bin10100100111011…
…01111110101110
3110001102022202202
422103231332232
5323233104410
625054421502
74166655560
oct1223557656
9401368682
10172941230
1189691340
1249b01892
1329aa1cb7
1418d7b330
15102b1ca5
hexa4edfae

172941230 has 64 divisors (see below), whose sum is σ = 408568320. Its totient is φ = 51062400.

The previous prime is 172941229. The next prime is 172941233. The reversal of 172941230 is 32149271.

It is a junction number, because it is equal to n+sod(n) for n = 172941193 and 172941202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172941233) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8720 + ... + 20540.

It is an arithmetic number, because the mean of its divisors is an integer number (6383880).

Almost surely, 2172941230 is an apocalyptic number.

172941230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

172941230 is an abundant number, since it is smaller than the sum of its proper divisors (235627090).

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

172941230 is a wasteful number, since it uses less digits than its factorization.

172941230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11865.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 172941230 is about 13150.7121480169. The cubic root of 172941230 is about 557.1423621360.

The spelling of 172941230 in words is "one hundred seventy-two million, nine hundred forty-one thousand, two hundred thirty".

Divisors: 1 2 5 7 10 11 14 19 22 35 38 55 70 77 95 110 133 154 190 209 266 385 418 665 770 1045 1330 1463 2090 2926 7315 11821 14630 23642 59105 82747 118210 130031 165494 224599 260062 413735 449198 650155 827470 910217 1122995 1300310 1572193 1820434 2245990 2470589 3144386 4551085 4941178 7860965 9102170 12352945 15721930 17294123 24705890 34588246 86470615 172941230