Search a number
-
+
123031442313230 = 25111796949899183
BaseRepresentation
bin11011111110010101111101…
…011010100101000000001110
3121010121200122202022022120012
4123332111331122211000032
5112111221343213010410
61113355510410153222
734625504555534033
oct3376257532450016
9533550582268505
10123031442313230
1136224383843220
1211970399122812
135385a7a096b39
142254a79b7938a
15e354e4425605
hex6fe57d6a500e

123031442313230 has 64 divisors (see below), whose sum is σ = 242973903744000. Its totient is φ = 44482317736320.

The previous prime is 123031442313203. The next prime is 123031442313287. The reversal of 123031442313230 is 32313244130321.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 136376219 + ... + 137275401.

It is an arithmetic number, because the mean of its divisors is an integer number (3796467246000).

Almost surely, 2123031442313230 is an apocalyptic number.

123031442313230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123031442313230 is a deficient number, since it is larger than the sum of its proper divisors (119942461430770).

123031442313230 is a wasteful number, since it uses less digits than its factorization.

123031442313230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 906329.

The product of its (nonzero) digits is 31104, while the sum is 32.

Adding to 123031442313230 its reverse (32313244130321), we get a palindrome (155344686443551).

The spelling of 123031442313230 in words is "one hundred twenty-three trillion, thirty-one billion, four hundred forty-two million, three hundred thirteen thousand, two hundred thirty".

Divisors: 1 2 5 10 11 22 55 110 179 358 895 1790 1969 3938 6949 9845 13898 19690 34745 69490 76439 152878 382195 764390 899183 1243871 1798366 2487742 4495915 6219355 8991830 9891013 12438710 13682581 19782026 27365162 49455065 68412905 98910130 136825810 160953757 321907514 804768785 1609537570 1770491327 3540982654 6248422667 8852456635 12496845334 17704913270 31242113335 62484226670 68732649337 137465298674 343663246685 687326493370 1118467657393 2236935314786 5592338286965 11184676573930 12303144231323 24606288462646 61515721156615 123031442313230