Search a number
-
+
18925260246 = 23223315327823
BaseRepresentation
bin10001101000000010…
…001000110111010110
31210211221012211110200
4101220002020313112
5302224331311441
612405534001330
71236662025564
oct215002106726
953757184420
1018925260246
1180318a8152
123802046246
131a27b2c759
14cb7680a34
1575b7247b6
hex468088dd6

18925260246 has 96 divisors (see below), whose sum is σ = 45002760192. Its totient is φ = 5729106240.

The previous prime is 18925260239. The next prime is 18925260283. The reversal of 18925260246 is 64206252981.

18925260246 is a `hidden beast` number, since 1 + 89 + 2 + 526 + 0 + 2 + 46 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 666291 + ... + 694113.

It is an arithmetic number, because the mean of its divisors is an integer number (468778752).

Almost surely, 218925260246 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18925260246, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22501380096).

18925260246 is an abundant number, since it is smaller than the sum of its proper divisors (26077499946).

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

18925260246 is a wasteful number, since it uses less digits than its factorization.

18925260246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27938 (or 27935 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The spelling of 18925260246 in words is "eighteen billion, nine hundred twenty-five million, two hundred sixty thousand, two hundred forty-six".

Divisors: 1 2 3 6 9 18 23 31 46 53 62 69 93 106 138 159 186 207 279 318 414 477 558 713 954 1219 1426 1643 2139 2438 3286 3657 4278 4929 6417 7314 9858 10971 12834 14787 21942 27823 29574 37789 55646 75578 83469 113367 166938 226734 250407 340101 500814 639929 680202 862513 1279858 1474619 1725026 1919787 2587539 2949238 3839574 4423857 5175078 5759361 7762617 8847714 11518722 13271571 15525234 19837799 26543142 33916237 39675598 45713189 59513397 67832474 91426378 101748711 119026794 137139567 178540191 203497422 274279134 305246133 357080382 411418701 610492266 822837402 1051403347 2102806694 3154210041 6308420082 9462630123 18925260246