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231002113100 = 225211442147501
BaseRepresentation
bin1101011100100011001…
…1001000010001001100
3211002020221020012121112
43113020303020101030
512241043020104400
6254042040551152
722455306364253
oct3271063102114
9732227205545
10231002113100
1189a70741680
123892a1824b8
1318a251b11b5
14b27566779a
15602004a835
hex35c8cc844c

231002113100 has 72 divisors (see below), whose sum is σ = 546980209776. Its totient is φ = 83980000000.

The previous prime is 231002113073. The next prime is 231002113141. The reversal of 231002113100 is 1311200132.

It is a super-2 number, since 2×2310021131002 (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4839350 + ... + 4886850.

It is an arithmetic number, because the mean of its divisors is an integer number (7596947358).

Almost surely, 2231002113100 is an apocalyptic number.

231002113100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231002113100 is an abundant number, since it is smaller than the sum of its proper divisors (315978096676).

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

231002113100 is a wasteful number, since it uses less digits than its factorization.

231002113100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51947 (or 51940 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 231002113100 its reverse (1311200132), we get a palindrome (232313313232).

The spelling of 231002113100 in words is "two hundred thirty-one billion, two million, one hundred thirteen thousand, one hundred".

Divisors: 1 2 4 5 10 11 20 22 25 44 50 55 100 110 220 275 550 1100 4421 8842 17684 22105 44210 47501 48631 88420 95002 97262 110525 190004 194524 221050 237505 243155 442100 475010 486310 522511 950020 972620 1045022 1187525 1215775 2090044 2375050 2431550 2612555 4750100 4863100 5225110 10450220 13062775 26125550 52251100 210001921 420003842 840007684 1050009605 2100019210 2310021131 4200038420 4620042262 5250048025 9240084524 10500096050 11550105655 21000192100 23100211310 46200422620 57750528275 115501056550 231002113100