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13231023410240 = 265172983868049
BaseRepresentation
bin1100000010001001011001…
…1100110100110001000000
31201211212120202210202001222
43000202112130310301000
53213234113443111430
644050125342014212
72533624044236516
oct300422634646100
951755522722058
1013231023410240
114241277868209
121598316b77368
1374c8ac3b526c
1433a5564344b6
1517e2814dc9e5
hexc0896734c40

13231023410240 has 112 divisors (see below), whose sum is σ = 34510025214000. Its totient is φ = 4809329344512.

The previous prime is 13231023410221. The next prime is 13231023410243. The reversal of 13231023410240 is 4201432013231.

It can be written as a sum of positive squares in 8 ways, for example, as 164128696384 + 13066894713856 = 405128^2 + 3614816^2 .

It is not an unprimeable number, because it can be changed into a prime (13231023410243) 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, 41776265 + ... + 42091784.

It is an arithmetic number, because the mean of its divisors is an integer number (308125225125).

Almost surely, 213231023410240 is an apocalyptic number.

13231023410240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13231023410240 is an abundant number, since it is smaller than the sum of its proper divisors (21279001803760).

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

13231023410240 is a wasteful number, since it uses less digits than its factorization.

13231023410240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83868112 (or 83868102 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 13231023410240 its reverse (4201432013231), we get a palindrome (17432455423471).

The spelling of 13231023410240 in words is "thirteen trillion, two hundred thirty-one billion, twenty-three million, four hundred ten thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 16 17 20 29 32 34 40 58 64 68 80 85 116 136 145 160 170 232 272 290 320 340 464 493 544 580 680 928 986 1088 1160 1360 1856 1972 2320 2465 2720 3944 4640 4930 5440 7888 9280 9860 15776 19720 31552 39440 78880 157760 83868049 167736098 335472196 419340245 670944392 838680490 1341888784 1425756833 1677360980 2432173421 2683777568 2851513666 3354721960 4864346842 5367555136 5703027332 6709443920 7128784165 9728693684 11406054664 12160867105 13418887840 14257568330 19457387368 22812109328 24321734210 26837775680 28515136660 38914774736 41346948157 45624218656 48643468420 57030273320 77829549472 82693896314 91248437312 97286936840 114060546640 155659098944 165387792628 194573873680 206734740785 228121093280 330775585256 389147747360 413469481570 456242186560 661551170512 778295494720 826938963140 1323102341024 1653877926280 2646204682048 3307755852560 6615511705120 13231023410240