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12631353330 = 23519213110399
BaseRepresentation
bin10111100001110001…
…10010011111110010
31012121022010020022010
423300320302133302
5201332111301310
65445221423350
7625005506001
oct136070623762
935538106263
1012631353330
1153a2084792
12254626ab56
131263bba38b
1487b806c38
154dddd3320
hex2f0e327f2

12631353330 has 64 divisors (see below), whose sum is σ = 31928832000. Its totient is φ = 3189274560.

The previous prime is 12631353323. The next prime is 12631353331. The reversal of 12631353330 is 3335313621.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (12631353331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1209471 + ... + 1219869.

It is an arithmetic number, because the mean of its divisors is an integer number (498888000).

Almost surely, 212631353330 is an apocalyptic number.

12631353330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12631353330 is an abundant number, since it is smaller than the sum of its proper divisors (19297478670).

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

12631353330 is a wasteful number, since it uses less digits than its factorization.

12631353330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12559.

The product of its (nonzero) digits is 14580, while the sum is 30.

Adding to 12631353330 its reverse (3335313621), we get a palindrome (15966666951).

The spelling of 12631353330 in words is "twelve billion, six hundred thirty-one million, three hundred fifty-three thousand, three hundred thirty".

Divisors: 1 2 3 5 6 10 15 19 30 38 57 95 114 190 285 570 2131 4262 6393 10399 10655 12786 20798 21310 31197 31965 40489 51995 62394 63930 80978 103990 121467 155985 197581 202445 242934 311970 395162 404890 592743 607335 987905 1185486 1214670 1975810 2963715 5927430 22160269 44320538 66480807 110801345 132961614 221602690 332404035 421045111 664808070 842090222 1263135333 2105225555 2526270666 4210451110 6315676665 12631353330