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68790982624959 = 37211328643144583
BaseRepresentation
bin11111010010000101001100…
…00101010100011010111111
3100000120100112212010112201210
433221002212011110122333
533004032413022444314
6402150050253135503
720326661451351600
oct1751024605243277
9300510485115653
1068790982624959
111aa12101350771
1278701a0a8a593
132c4cc6719732a
1412db7038c1da7
157e462834a559
hex3e90a61546bf

68790982624959 has 48 divisors (see below), whose sum is σ = 107644934783232. Its totient is φ = 38959634794752.

The previous prime is 68790982624909. The next prime is 68790982624961. The reversal of 68790982624959 is 95942628909786.

It is a happy number.

It is not a de Polignac number, because 68790982624959 - 27 = 68790982624831 is a prime.

It is a super-2 number, since 2×687909826249592 (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68790982624909) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 475716582 + ... + 475861164.

It is an arithmetic number, because the mean of its divisors is an integer number (2242602807984).

Almost surely, 268790982624959 is an apocalyptic number.

68790982624959 is a deficient number, since it is larger than the sum of its proper divisors (38853952158273).

68790982624959 is a wasteful number, since it uses less digits than its factorization.

68790982624959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173356 (or 173349 counting only the distinct ones).

The product of its (nonzero) digits is 8465264640, while the sum is 84.

The spelling of 68790982624959 in words is "sixty-eight trillion, seven hundred ninety billion, nine hundred eighty-two million, six hundred twenty-four thousand, nine hundred fifty-nine".

Divisors: 1 3 7 21 49 113 147 339 791 2373 5537 16611 28643 85929 144583 200501 433749 601503 1012081 1403507 3036243 3236659 4210521 7084567 9709977 16337879 21253701 22656613 49013637 67969839 114365153 158596291 343095459 475788873 800556071 2401668213 4141290869 12423872607 28989036083 86967108249 202923252581 467965868197 608769757743 1403897604591 3275761077379 9827283232137 22930327541653 68790982624959