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47131187004 = 223211119018149
BaseRepresentation
bin101011111001001111…
…001101011100111100
311111122122122101000200
4223321033031130330
51233011040441004
633352440523500
73255645323316
oct537117153474
9144578571020
1047131187004
1118a96365420
129174180590
1345a15cb345
1423d17167b6
15135cab6239
hexaf93cd73c

47131187004 has 36 divisors (see below), whose sum is σ = 129967819800. Its totient is φ = 14282177760.

The previous prime is 47131187003. The next prime is 47131187017. The reversal of 47131187004 is 40078113174.

47131187004 is a `hidden beast` number, since 471 + 3 + 1 + 187 + 0 + 0 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 47131187004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47131187003) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 59508679 + ... + 59509470.

Almost surely, 247131187004 is an apocalyptic number.

47131187004 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

47131187004 is an abundant number, since it is smaller than the sum of its proper divisors (82836632796).

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

47131187004 is a wasteful number, since it uses less digits than its factorization.

47131187004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119018170 (or 119018165 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 36.

The spelling of 47131187004 in words is "forty-seven billion, one hundred thirty-one million, one hundred eighty-seven thousand, four".

Divisors: 1 2 3 4 6 9 11 12 18 22 33 36 44 66 99 132 198 396 119018149 238036298 357054447 476072596 714108894 1071163341 1309199639 1428217788 2142326682 2618399278 3927598917 4284653364 5236798556 7855197834 11782796751 15710395668 23565593502 47131187004