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69880643712 = 2732115514571
BaseRepresentation
bin100000100010100110…
…1100000000010000000
320200101002202111211100
41001011031200002000
52121103421044322
652034104414400
75022464446065
oct1010515400200
9220332674740
1069880643712
11276aa88aa10
1211662a77400
1367887b7729
14354cc26c6c
151c3edd5dac
hex1045360080

69880643712 has 96 divisors (see below), whose sum is σ = 219369674160. Its totient is φ = 21175948800.

The previous prime is 69880643699. The next prime is 69880643719. The reversal of 69880643712 is 21734608896.

It is a tau number, because it is divible by the number of its divisors (96).

It is not an unprimeable number, because it can be changed into a prime (69880643719) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2744614 + ... + 2769957.

Almost surely, 269880643712 is an apocalyptic number.

It is an amenable number.

69880643712 is an abundant number, since it is smaller than the sum of its proper divisors (149489030448).

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

69880643712 is a wasteful number, since it uses less digits than its factorization.

69880643712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5514602 (or 5514587 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 54.

The spelling of 69880643712 in words is "sixty-nine billion, eight hundred eighty million, six hundred forty-three thousand, seven hundred twelve".

Divisors: 1 2 3 4 6 8 9 11 12 16 18 22 24 32 33 36 44 48 64 66 72 88 96 99 128 132 144 176 192 198 264 288 352 384 396 528 576 704 792 1056 1152 1408 1584 2112 3168 4224 6336 12672 5514571 11029142 16543713 22058284 33087426 44116568 49631139 60660281 66174852 88233136 99262278 121320562 132349704 176466272 181980843 198524556 242641124 264699408 352932544 363961686 397049112 485282248 529398816 545942529 705865088 727923372 794098224 970564496 1058797632 1091885058 1455846744 1588196448 1941128992 2117595264 2183770116 2911693488 3176392896 3882257984 4367540232 5823386976 6352785792 7764515968 8735080464 11646773952 17470160928 23293547904 34940321856 69880643712