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69031069448 = 2311173159667
BaseRepresentation
bin100000001001010010…
…0101000011100001000
320121011220010200000212
41000102210220130020
52112333423210243
651413515220252
74662440260145
oct1002244503410
9217156120025
1069031069448
112730426a220
1211466447688
136681798173
1434ac0753cc
151be051a318
hex1012928708

69031069448 has 64 divisors (see below), whose sum is σ = 150024052800. Its totient is φ = 29531823360.

The previous prime is 69031069447. The next prime is 69031069451. The reversal of 69031069448 is 84496013096.

It is a junction number, because it is equal to n+sod(n) for n = 69031069396 and 69031069405.

It is not an unprimeable number, because it can be changed into a prime (69031069441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 352511 + ... + 512177.

It is an arithmetic number, because the mean of its divisors is an integer number (2344125825).

Almost surely, 269031069448 is an apocalyptic number.

69031069448 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 69031069448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75012026400).

69031069448 is an abundant number, since it is smaller than the sum of its proper divisors (80992983352).

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

69031069448 is a wasteful number, since it uses less digits than its factorization.

69031069448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159735 (or 159697 counting only the distinct ones).

The product of its (nonzero) digits is 1119744, while the sum is 50.

The spelling of 69031069448 in words is "sixty-nine billion, thirty-one million, sixty-nine thousand, four hundred forty-eight".

Divisors: 1 2 4 8 11 17 22 34 44 68 88 136 187 289 374 578 748 1156 1496 2312 3179 4913 6358 9826 12716 19652 25432 39304 54043 108086 159667 216172 319334 432344 638668 1277336 1756337 2714339 3512674 5428678 7025348 10857356 14050696 21714712 29857729 46143763 59715458 92287526 119430916 184575052 238861832 369150104 507581393 784443971 1015162786 1568887942 2030325572 3137775884 4060651144 6275551768 8628883681 17257767362 34515534724 69031069448