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69996635982 = 23271326614973
BaseRepresentation
bin100000100110000011…
…1111110011101001110
320200200012000112022100
41001030013332131032
52121323114322412
652053410455530
75025403406010
oct1011407763516
9220605015270
1069996635982
112775a304699
12116958945a6
1367a683a400
1435603bc1b0
151c4a198edc
hex104c1fe74e

69996635982 has 144 divisors (see below), whose sum is σ = 188005023648. Its totient is φ = 18429016320.

The previous prime is 69996635963. The next prime is 69996635983. The reversal of 69996635982 is 28953669996.

It is a self number, because there is not a number n which added to its sum of digits gives 69996635982.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69996635983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 14072848 + ... + 14077820.

It is an arithmetic number, because the mean of its divisors is an integer number (1305590442).

Almost surely, 269996635982 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 69996635982, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94002511824).

69996635982 is an abundant number, since it is smaller than the sum of its proper divisors (118008387666).

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

69996635982 is a wasteful number, since it uses less digits than its factorization.

69996635982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5675 (or 5659 counting only the distinct ones).

The product of its digits is 340122240, while the sum is 72.

The spelling of 69996635982 in words is "sixty-nine billion, nine hundred ninety-six million, six hundred thirty-five thousand, nine hundred eighty-two".

Divisors: 1 2 3 6 7 9 13 14 18 21 26 39 42 63 78 91 117 126 169 182 234 273 338 507 546 661 819 1014 1183 1322 1521 1638 1983 2366 3042 3549 3966 4627 4973 5949 7098 8593 9254 9946 10647 11898 13881 14919 17186 21294 25779 27762 29838 34811 41643 44757 51558 60151 64649 69622 77337 83286 89514 104433 111709 120302 129298 154674 180453 193947 208866 223418 313299 335127 360906 387894 452543 541359 581841 626598 670254 781963 840437 905086 1005381 1082718 1163682 1357629 1563926 1680874 2010762 2345889 2521311 2715258 3287153 4072887 4691778 5042622 5883059 6574306 7037667 7563933 8145774 9861459 11766118 14075334 15127866 17649177 19722918 23010071 29584377 35298354 42732989 46020142 52947531 59168754 69030213 85465978 105895062 128198967 138060426 207090639 256397934 299130923 384596901 414181278 555528857 598261846 769193802 897392769 1111057714 1666586571 1794785538 2692178307 3333173142 3888701999 4999759713 5384356614 7777403998 9999519426 11666105997 23332211994 34998317991 69996635982