Search a number
-
+
3230731865780 = 2252328324817421
BaseRepresentation
bin101111000000110110101…
…000000000111010110100
3102102212002020222111102122
4233000312220000322310
5410413014324201110
610512102220055112
7452261355520316
oct57006650007264
912385066874378
103230731865780
111036166a05561
12442179694498
131a586ca2c833
14b25226d37b6
155908abab255
hex2f036a00eb4

3230731865780 has 48 divisors (see below), whose sum is σ = 7104533030784. Its totient is φ = 1231738189440.

The previous prime is 3230731865723. The next prime is 3230731865789. The reversal of 3230731865780 is 875681370323.

It is a happy number.

It is a super-3 number, since 3×32307318657803 (a number of 39 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3230731865789) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12278531 + ... + 12538890.

It is an arithmetic number, because the mean of its divisors is an integer number (148011104808).

Almost surely, 23230731865780 is an apocalyptic number.

It is an amenable number.

3230731865780 is an abundant number, since it is smaller than the sum of its proper divisors (3873801165004).

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

3230731865780 is a wasteful number, since it uses less digits than its factorization.

3230731865780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24817736 (or 24817734 counting only the distinct ones).

The product of its (nonzero) digits is 5080320, while the sum is 53.

The spelling of 3230731865780 in words is "three trillion, two hundred thirty billion, seven hundred thirty-one million, eight hundred sixty-five thousand, seven hundred eighty".

Divisors: 1 2 4 5 10 20 23 46 92 115 230 283 460 566 1132 1415 2830 5660 6509 13018 26036 32545 65090 130180 24817421 49634842 99269684 124087105 248174210 496348420 570800683 1141601366 2283202732 2854003415 5708006830 7023330143 11416013660 14046660286 28093320572 35116650715 70233301430 140466602860 161536593289 323073186578 646146373156 807682966445 1615365932890 3230731865780