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13023023313220 = 22537831117189823
BaseRepresentation
bin1011110110000010100010…
…1011011011000101000100
31201002222200212221000120221
42331200220223123011010
53201332122432010340
643410405550034124
72512611441466504
oct275405053330504
951088625830527
1013023023313220
114171040172788
121563b481a8944
137360b181aa8b
14330463a61a04
15178b5aa4e44a
hexbd828adb144

13023023313220 has 96 divisors (see below), whose sum is σ = 28451495374848. Its totient is φ = 5002845368832.

The previous prime is 13023023313211. The next prime is 13023023313247. The reversal of 13023023313220 is 2231332032031.

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, 68511229 + ... + 68701051.

It is an arithmetic number, because the mean of its divisors is an integer number (296369743488).

Almost surely, 213023023313220 is an apocalyptic number.

13023023313220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13023023313220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14225747687424).

13023023313220 is an abundant number, since it is smaller than the sum of its proper divisors (15428472061628).

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

13023023313220 is a wasteful number, since it uses less digits than its factorization.

13023023313220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191069 (or 191067 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 25.

Adding to 13023023313220 its reverse (2231332032031), we get a palindrome (15254355345251).

The spelling of 13023023313220 in words is "thirteen trillion, twenty-three billion, twenty-three million, three hundred thirteen thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 37 74 83 148 166 185 332 370 415 740 830 1117 1660 2234 3071 4468 5585 6142 11170 12284 15355 22340 30710 41329 61420 82658 92711 165316 185422 189823 206645 370844 379646 413290 463555 759292 826580 927110 949115 1854220 1898230 3430307 3796460 6860614 7023451 13721228 14046902 15755309 17151535 28093804 31510618 34303070 35117255 63021236 68606140 70234510 78776545 140469020 157553090 212032291 315106180 424064582 582946433 848129164 1060161455 1165892866 2120322910 2331785732 2914732165 4240645820 5829464330 7845194767 11658928660 15690389534 17598680153 31380779068 35197360306 39225973835 70394720612 78451947670 87993400765 156903895340 175986801530 351973603060 651151165661 1302302331322 2604604662644 3255755828305 6511511656610 13023023313220