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6161017665212 = 22174991339713553
BaseRepresentation
bin101100110100111100101…
…0001001111011010111100
3210210222122220200110010022
41121221321101033122330
51301420231010241322
621034155450231312
71204055522041304
oct131517121173274
923728586613108
106161017665212
111a65966944543
12836068425538
13358c9b3b0387
141742a292c604
15aa3dee45942
hex59a7944f6bc

6161017665212 has 48 divisors (see below), whose sum is σ = 11440578996000. Its totient is φ = 2893062746112.

The previous prime is 6161017665169. The next prime is 6161017665223. The reversal of 6161017665212 is 2125667101616.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 454580228 + ... + 454593780.

It is an arithmetic number, because the mean of its divisors is an integer number (238345395750).

Almost surely, 26161017665212 is an apocalyptic number.

It is an amenable number.

6161017665212 is a deficient number, since it is larger than the sum of its proper divisors (5279561330788).

6161017665212 is a wasteful number, since it uses less digits than its factorization.

6161017665212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27470 (or 27468 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 44.

The spelling of 6161017665212 in words is "six trillion, one hundred sixty-one billion, seventeen million, six hundred sixty-five thousand, two hundred twelve".

Divisors: 1 2 4 17 34 68 499 998 1996 8483 13397 13553 16966 26794 27106 33932 53588 54212 227749 230401 455498 460802 910996 921604 6685103 6762947 13370206 13525894 26740412 27051788 113646751 114970099 181569541 227293502 229940198 363139082 454587004 459880396 726278164 3086682197 6173364394 12346728788 90603200959 181206401918 362412803836 1540254416303 3080508832606 6161017665212