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172430102 = 2139536959
BaseRepresentation
bin10100100011100…
…01001100010110
3110000110100122002
422101301030112
5323120230402
625035435302
74162426445
oct1221611426
9400410562
10172430102
1189372319
12498b5b32
1329953460
1418c86d5c
1510210602
hexa471316

172430102 has 16 divisors (see below), whose sum is σ = 278873280. Its totient is φ = 79488192.

The previous prime is 172430087. The next prime is 172430107. The reversal of 172430102 is 201034271.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172430107) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21299 + ... + 28257.

It is an arithmetic number, because the mean of its divisors is an integer number (17429580).

Almost surely, 2172430102 is an apocalyptic number.

172430102 is a deficient number, since it is larger than the sum of its proper divisors (106443178).

172430102 is a wasteful number, since it uses less digits than its factorization.

172430102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7927.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 172430102 is about 13131.2642955658. The cubic root of 172430102 is about 556.5929422167.

Adding to 172430102 its reverse (201034271), we get a palindrome (373464373).

The spelling of 172430102 in words is "one hundred seventy-two million, four hundred thirty thousand, one hundred two".

Divisors: 1 2 13 26 953 1906 6959 12389 13918 24778 90467 180934 6631927 13263854 86215051 172430102