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13020240430 = 25233779107181
BaseRepresentation
bin11000010000001000…
…10001101000101110
31020121101212202010001
430020010101220232
5203131140143210
65551552534514
7640440134431
oct141004215056
936541782101
1013020240430
11558164a38a
12263455143a
1312c663a6a2
148b7317818
155130ee03a
hex308111a2e

13020240430 has 128 divisors (see below), whose sum is σ = 25813831680. Its totient is φ = 4714744320.

The previous prime is 13020240413. The next prime is 13020240433. The reversal of 13020240430 is 3404202031.

It is a junction number, because it is equal to n+sod(n) for n = 13020240398 and 13020240407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13020240433) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 71934940 + ... + 71935120.

It is an arithmetic number, because the mean of its divisors is an integer number (201670560).

Almost surely, 213020240430 is an apocalyptic number.

13020240430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13020240430 is a deficient number, since it is larger than the sum of its proper divisors (12793591250).

13020240430 is a wasteful number, since it uses less digits than its factorization.

13020240430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434.

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 13020240430 its reverse (3404202031), we get a palindrome (16424442461).

The spelling of 13020240430 in words is "thirteen billion, twenty million, two hundred forty thousand, four hundred thirty".

Divisors: 1 2 5 10 23 37 46 74 79 107 115 158 181 185 214 230 362 370 395 535 790 851 905 1070 1702 1810 1817 2461 2923 3634 3959 4163 4255 4922 5846 6697 7918 8326 8453 8510 9085 12305 13394 14299 14615 16906 18170 19367 19795 20815 24610 28598 29230 33485 38734 39590 41630 42265 66970 67229 71495 84530 91057 96835 134458 142990 154031 182114 193670 194419 308062 312761 328877 336145 388838 445441 455285 529063 625522 657754 672290 716579 770155 890882 910570 972095 1058126 1433158 1529993 1540310 1563805 1644385 1944190 2227205 2645315 3059986 3127610 3288770 3582895 4454410 5290630 7165790 7193503 7649965 12168449 14387006 15299930 16481317 24336898 32962634 35189839 35967515 56609741 60842245 70379678 71935030 82406585 113219482 121684490 164813170 175949195 283048705 351898390 566097410 1302024043 2604048086 6510120215 13020240430