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193508230 = 2540734751
BaseRepresentation
bin10111000100010…
…11001110000110
3111111010020101111
423202023032012
5344014230410
631111315234
74536535636
oct1342131606
9444106344
10193508230
119a259663
125497bb1a
1331123516
141b9b26c6
1511ec5b8a
hexb88b386

193508230 has 16 divisors (see below), whose sum is σ = 348473664. Its totient is φ = 77368000.

The previous prime is 193508173. The next prime is 193508239. The reversal of 193508230 is 32805391.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 193508192 and 193508201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (193508239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38355 + ... + 43105.

It is an arithmetic number, because the mean of its divisors is an integer number (21779604).

Almost surely, 2193508230 is an apocalyptic number.

193508230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

193508230 is a deficient number, since it is larger than the sum of its proper divisors (154965434).

193508230 is a wasteful number, since it uses less digits than its factorization.

193508230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8831.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 193508230 is about 13910.7235613393. The cubic root of 193508230 is about 578.4064760525.

The spelling of 193508230 in words is "one hundred ninety-three million, five hundred eight thousand, two hundred thirty".

Divisors: 1 2 5 10 4073 4751 8146 9502 20365 23755 40730 47510 19350823 38701646 96754115 193508230