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105012542450 = 25243317154079
BaseRepresentation
bin110000111001100111…
…1000011101111110010
3101001001111121212211002
41201303033003233302
53210031202324300
6120124143122002
710405210611614
oct1416317035762
9331044555732
10105012542450
114059892a472
12184285a3302
139b971401aa
145122a68db4
152ae931c5d5
hex18733c3bf2

105012542450 has 48 divisors (see below), whose sum is σ = 200497524480. Its totient is φ = 40898464320.

The previous prime is 105012542389. The next prime is 105012542483. The reversal of 105012542450 is 54245210501.

It is a super-2 number, since 2×1050125424502 (a number of 23 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, 604511 + ... + 758589.

It is an arithmetic number, because the mean of its divisors is an integer number (4177031760).

Almost surely, 2105012542450 is an apocalyptic number.

105012542450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

105012542450 is a deficient number, since it is larger than the sum of its proper divisors (95484982030).

105012542450 is a wasteful number, since it uses less digits than its factorization.

105012542450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154451 (or 154446 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 29.

Adding to 105012542450 its reverse (54245210501), we get a palindrome (159257752951).

The spelling of 105012542450 in words is "one hundred five billion, twelve million, five hundred forty-two thousand, four hundred fifty".

Divisors: 1 2 5 10 25 43 50 86 215 317 430 634 1075 1585 2150 3170 7925 13631 15850 27262 68155 136310 154079 308158 340775 681550 770395 1540790 3851975 6625397 7703950 13250794 33126985 48843043 66253970 97686086 165634925 244215215 331269850 488430430 1221076075 2100250849 2442152150 4200501698 10501254245 21002508490 52506271225 105012542450