Search a number
-
+
385461623500 = 22531069721163
BaseRepresentation
bin1011001101111110100…
…11011001101011001100
31100211221111001022200221
411212333103121223030
522303411133423000
6453024552201124
736564045511462
oct5467723315314
91324844038627
10385461623500
11139523045a08
12628563991a4
132a46c62b7b5
14149293c4832
15a0603bb61a
hex59bf4d9acc

385461623500 has 48 divisors (see below), whose sum is σ = 842636864160. Its totient is φ = 154040203200.

The previous prime is 385461623479. The next prime is 385461623501. The reversal of 385461623500 is 5326164583.

It is a super-3 number, since 3×3854616235003 (a number of 36 digits) contains 333 as substring.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (385461623501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 173919 + ... + 895081.

It is an arithmetic number, because the mean of its divisors is an integer number (17554934670).

Almost surely, 2385461623500 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 385461623500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (421318432080).

385461623500 is an abundant number, since it is smaller than the sum of its proper divisors (457175240660).

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

385461623500 is a wasteful number, since it uses less digits than its factorization.

385461623500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 722251 (or 722239 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 43.

The spelling of 385461623500 in words is "three hundred eighty-five billion, four hundred sixty-one million, six hundred twenty-three thousand, five hundred".

Divisors: 1 2 4 5 10 20 25 50 100 125 250 500 1069 2138 4276 5345 10690 21380 26725 53450 106900 133625 267250 534500 721163 1442326 2884652 3605815 7211630 14423260 18029075 36058150 72116300 90145375 180290750 360581500 770923247 1541846494 3083692988 3854616235 7709232470 15418464940 19273081175 38546162350 77092324700 96365405875 192730811750 385461623500