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688201319382 = 23736072588527
BaseRepresentation
bin10100000001110111111…
…11101100001111010110
32102210100221012022122220
422000323333230033112
542233414014210012
61244053314403210
7100502161460523
oct12007377541726
92383327168586
10688201319382
11245956781285
12b1465290506
134cb87c32115
142544833014a
1512d7d35208c
hexa03bfec3d6

688201319382 has 32 divisors (see below), whose sum is σ = 1397556621312. Its totient is φ = 225885132864.

The previous prime is 688201319381. The next prime is 688201319447. The reversal of 688201319382 is 283913102886.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (688201319381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1028398 + ... + 1560129.

It is an arithmetic number, because the mean of its divisors is an integer number (43673644416).

Almost surely, 2688201319382 is an apocalyptic number.

688201319382 is an abundant number, since it is smaller than the sum of its proper divisors (709355301930).

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

688201319382 is a wasteful number, since it uses less digits than its factorization.

688201319382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2589212.

The product of its (nonzero) digits is 995328, while the sum is 51.

The spelling of 688201319382 in words is "six hundred eighty-eight billion, two hundred one million, three hundred nineteen thousand, three hundred eighty-two".

Divisors: 1 2 3 6 73 146 219 438 607 1214 1821 3642 44311 88622 132933 265866 2588527 5177054 7765581 15531162 188962471 377924942 566887413 1133774826 1571235889 3142471778 4713707667 9427415334 114700219897 229400439794 344100659691 688201319382