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12631324740 = 22351799111291
BaseRepresentation
bin10111100001110001…
…01011100001000100
31012121022001210002020
423300320223201010
5201332104342430
65445221043140
7625005326436
oct136070534104
935538053066
1012631324740
1153a2065261
1225462564b0
131263baa368
1487b7da656
154dddc9b10
hex2f0e2b844

12631324740 has 96 divisors (see below), whose sum is σ = 35631912960. Its totient is φ = 3343267200.

The previous prime is 12631324663. The next prime is 12631324747. The reversal of 12631324740 is 4742313621.

It is not an unprimeable number, because it can be changed into a prime (12631324747) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9783495 + ... + 9784785.

It is an arithmetic number, because the mean of its divisors is an integer number (371165760).

Almost surely, 212631324740 is an apocalyptic number.

12631324740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12631324740 is an abundant number, since it is smaller than the sum of its proper divisors (23000588220).

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

12631324740 is a wasteful number, since it uses less digits than its factorization.

12631324740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2393 (or 2391 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 33.

The spelling of 12631324740 in words is "twelve billion, six hundred thirty-one million, three hundred twenty-four thousand, seven hundred forty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 179 358 537 716 895 911 1074 1291 1790 1822 2148 2582 2685 2733 3580 3644 3873 4555 5164 5370 5466 6455 7746 9110 10740 10932 12910 13665 15492 18220 19365 25820 27330 38730 54660 77460 163069 231089 326138 462178 489207 652276 693267 815345 924356 978414 1155445 1176101 1386534 1630690 1956828 2310890 2352202 2446035 2773068 3261380 3466335 3528303 4621780 4704404 4892070 5880505 6932670 7056606 9784140 11761010 13865340 14113212 17641515 23522020 35283030 70566060 210522079 421044158 631566237 842088316 1052610395 1263132474 2105220790 2526264948 3157831185 4210441580 6315662370 12631324740