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105214253298 = 23711478358379
BaseRepresentation
bin110000111111101000…
…0100001100011110010
3101001120120011212002020
41201333100201203302
53210434322101143
6120200150332310
710413210253110
oct1417720414362
9331516155066
10105214253298
1140691780850
121848405a096
139bc9b7611b
145141774ab0
152b0bdb3883
hex187f4218f2

105214253298 has 128 divisors (see below), whose sum is σ = 271167160320. Its totient is φ = 26424217920.

The previous prime is 105214253297. The next prime is 105214253299. The reversal of 105214253298 is 892352412501.

It is an interprime number because it is at equal distance from previous prime (105214253297) and next prime (105214253299).

It is a super-2 number, since 2×1052142532982 (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (105214253297) 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, 1773073 + ... + 1831451.

It is an arithmetic number, because the mean of its divisors is an integer number (2118493440).

Almost surely, 2105214253298 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 105214253298, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (135583580160).

105214253298 is an abundant number, since it is smaller than the sum of its proper divisors (165952907022).

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

105214253298 is a wasteful number, since it uses less digits than its factorization.

105214253298 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58532.

The product of its (nonzero) digits is 172800, while the sum is 42.

Adding to 105214253298 its reverse (892352412501), we get a palindrome (997566665799).

The spelling of 105214253298 in words is "one hundred five billion, two hundred fourteen million, two hundred fifty-three thousand, two hundred ninety-eight".

Divisors: 1 2 3 6 7 11 14 21 22 33 42 47 66 77 83 94 141 154 166 231 249 282 329 462 498 517 581 658 913 987 1034 1162 1551 1743 1826 1974 2739 3102 3486 3619 3901 5478 6391 7238 7802 10857 11703 12782 19173 21714 23406 27307 38346 42911 54614 58379 81921 85822 116758 128733 163842 175137 257466 300377 350274 408653 600754 642169 817306 901131 1225959 1284338 1802262 1926507 2451918 2743813 3853014 4495183 4845457 5487626 8231439 8990366 9690914 13485549 14536371 16462878 19206691 26971098 29072742 30181943 33918199 38413382 53300027 57620073 60363886 67836398 90545829 101754597 106600054 115240146 159900081 181091658 203509194 211273601 227736479 319800162 373100189 422547202 455472958 633820803 683209437 746200378 1119300567 1267641606 1366418874 1594155353 2238601134 2505101269 3188310706 4782466059 5010202538 7515303807 9564932118 15030607614 17535708883 35071417766 52607126649 105214253298