Search a number
-
+
69836121264 = 24371315988123
BaseRepresentation
bin100000100001010001…
…1101010010010110000
320200020222222112111210
41001002203222102300
52121011021340024
652025434240120
75021414144040
oct1010243522260
9220228875453
1069836121264
11276877405a8
121164bb86040
13677c4c95a0
143546d57720
151c3b03e129
hex10428ea4b0

69836121264 has 80 divisors (see below), whose sum is σ = 222043066112. Its totient is φ = 18418316544.

The previous prime is 69836121253. The next prime is 69836121283. The reversal of 69836121264 is 46212163896.

It is a super-2 number, since 2×698361212642 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7989694 + ... + 7998429.

Almost surely, 269836121264 is an apocalyptic number.

It is an amenable number.

69836121264 is an abundant number, since it is smaller than the sum of its proper divisors (152206944848).

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

69836121264 is a wasteful number, since it uses less digits than its factorization.

69836121264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15988154 (or 15988148 counting only the distinct ones).

The product of its digits is 746496, while the sum is 48.

The spelling of 69836121264 in words is "sixty-nine billion, eight hundred thirty-six million, one hundred twenty-one thousand, two hundred sixty-four".

Divisors: 1 2 3 4 6 7 8 12 13 14 16 21 24 26 28 39 42 48 52 56 78 84 91 104 112 156 168 182 208 273 312 336 364 546 624 728 1092 1456 2184 4368 15988123 31976246 47964369 63952492 95928738 111916861 127904984 191857476 207845599 223833722 255809968 335750583 383714952 415691198 447667444 623536797 671501166 767429904 831382396 895334888 1247073594 1343002332 1454919193 1662764792 1790669776 2494147188 2686004664 2909838386 3325529584 4364757579 4988294376 5372009328 5819676772 8729515158 9976588752 11639353544 17459030316 23278707088 34918060632 69836121264