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68875124605 = 5723281304481
BaseRepresentation
bin100000000100101000…
…1101111111101111101
320120210000200211220221
41000021101233331331
52112024012441410
651350224541341
74655534620360
oct1001121577575
9216700624827
1068875124605
1127234237591
1211422181851
136658397401
1434954800d7
151bd19b44da
hex100946ff7d

68875124605 has 32 divisors (see below), whose sum is σ = 98915240448. Its totient is φ = 45014323200.

The previous prime is 68875124599. The next prime is 68875124639. The reversal of 68875124605 is 50642157886.

It is a happy number.

It is not a de Polignac number, because 68875124605 - 25 = 68875124573 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 73965 + ... + 378445.

It is an arithmetic number, because the mean of its divisors is an integer number (3091101264).

Almost surely, 268875124605 is an apocalyptic number.

It is an amenable number.

68875124605 is a deficient number, since it is larger than the sum of its proper divisors (30040115843).

68875124605 is a wasteful number, since it uses less digits than its factorization.

68875124605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304797.

The product of its (nonzero) digits is 3225600, while the sum is 52.

The spelling of 68875124605 in words is "sixty-eight billion, eight hundred seventy-five million, one hundred twenty-four thousand, six hundred five".

Divisors: 1 5 7 23 35 115 161 281 805 1405 1967 6463 9835 32315 45241 226205 304481 1522405 2131367 7003063 10656835 35015315 49021441 85559161 245107205 427795805 598914127 1967860703 2994570635 9839303515 13775024921 68875124605