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47212987503 = 311174711531553
BaseRepresentation
bin101011111110000111…
…010000010001101111
311111212100120021012210
4223332013100101233
51233143011100003
633404522101503
73260660525613
oct537607202157
9144770507183
1047212987503
1119028556340
12919764a893
1345b553c0c6
1423dc52b343
151364d73503
hexafe1d046f

47212987503 has 64 divisors (see below), whose sum is σ = 74372401152. Its totient is φ = 26317946880.

The previous prime is 47212987499. The next prime is 47212987519. The reversal of 47212987503 is 30578921274.

It is a happy number.

It is not a de Polignac number, because 47212987503 - 22 = 47212987499 is a prime.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47212987303) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 30400375 + ... + 30401927.

It is an arithmetic number, because the mean of its divisors is an integer number (1162068768).

Almost surely, 247212987503 is an apocalyptic number.

47212987503 is a deficient number, since it is larger than the sum of its proper divisors (27159413649).

47212987503 is a wasteful number, since it uses less digits than its factorization.

47212987503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2784.

The product of its (nonzero) digits is 846720, while the sum is 48.

The spelling of 47212987503 in words is "forty-seven billion, two hundred twelve million, nine hundred eighty-seven thousand, five hundred three".

Divisors: 1 3 11 17 33 47 51 141 187 517 561 799 1153 1551 1553 2397 3459 4659 8789 12683 17083 19601 26367 26401 38049 51249 54191 58803 72991 79203 162573 215611 218973 290411 596101 646833 802901 871233 921247 1240847 1788303 1790609 2408703 2763741 3722541 5371827 10133717 13649317 19696699 30401151 30440353 40947951 59090097 84158623 91321059 252475869 334843883 925744853 1004531649 1430696591 2777234559 4292089773 15737662501 47212987503