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102145432230 = 23256716939541
BaseRepresentation
bin101111100100001010…
…1111001101010100110
3100202122200122120222200
41133020111321222212
53133143212312410
6114531443035330
710244154563652
oct1371025715246
9322580576880
10102145432230
113a357485096
121796836bb46
13982b14687a
144d2dd75a62
1529cc7783c0
hex17c8579aa6

102145432230 has 48 divisors (see below), whose sum is σ = 269541992304. Its totient is φ = 26832231360.

The previous prime is 102145432223. The next prime is 102145432231. The reversal of 102145432230 is 32234541201.

102145432230 is a `hidden beast` number, since 10 + 214 + 5 + 432 + 2 + 3 + 0 = 666.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 102145432194 and 102145432203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102145432231) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8463741 + ... + 8475800.

It is an arithmetic number, because the mean of its divisors is an integer number (5615458173).

Almost surely, 2102145432230 is an apocalyptic number.

102145432230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102145432230 is an abundant number, since it is smaller than the sum of its proper divisors (167396560074).

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

102145432230 is a wasteful number, since it uses less digits than its factorization.

102145432230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16939621 (or 16939618 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

Adding to 102145432230 its reverse (32234541201), we get a palindrome (134379973431).

The spelling of 102145432230 in words is "one hundred two billion, one hundred forty-five million, four hundred thirty-two thousand, two hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 67 90 134 201 335 402 603 670 1005 1206 2010 3015 6030 16939541 33879082 50818623 84697705 101637246 152455869 169395410 254093115 304911738 508186230 762279345 1134949247 1524558690 2269898494 3404847741 5674746235 6809695482 10214543223 11349492470 17024238705 20429086446 34048477410 51072716115 102145432230