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12510229490 = 25113118120269
BaseRepresentation
bin10111010011010101…
…01111001111110010
31012021212012111121222
423221222233033302
5201110104320430
65425213345042
7622005124163
oct135152571762
935255174558
1012510229490
11533a775640
122511798182
131244a8ba75
148696b776a
154d34599e5
hex2e9aaf3f2

12510229490 has 64 divisors (see below), whose sum is σ = 25499335680. Its totient is φ = 4377888000.

The previous prime is 12510229477. The next prime is 12510229513. The reversal of 12510229490 is 9492201521.

It is a self number, because there is not a number n which added to its sum of digits gives 12510229490.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 607076 + ... + 627344.

It is an arithmetic number, because the mean of its divisors is an integer number (398427120).

Almost surely, 212510229490 is an apocalyptic number.

12510229490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12510229490 is an abundant number, since it is smaller than the sum of its proper divisors (12989106190).

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

12510229490 is a wasteful number, since it uses less digits than its factorization.

12510229490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20499.

The product of its (nonzero) digits is 12960, while the sum is 35.

The spelling of 12510229490 in words is "twelve billion, five hundred ten million, two hundred twenty-nine thousand, four hundred ninety".

Divisors: 1 2 5 10 11 22 31 55 62 110 155 181 310 341 362 682 905 1705 1810 1991 3410 3982 5611 9955 11222 19910 20269 28055 40538 56110 61721 101345 123442 202690 222959 308605 445918 617210 628339 1114795 1256678 2229590 3141695 3668689 6283390 6911729 7337378 13823458 18343445 34558645 36686890 40355579 69117290 80711158 113729359 201777895 227458718 403555790 568646795 1137293590 1251022949 2502045898 6255114745 12510229490