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993285214971 = 37192489436629
BaseRepresentation
bin11100111010001000110…
…10011001001011111011
310111221211202101000002020
432131010122121023323
5112233222003334341
62040150421205523
7131522351010210
oct16350432311373
93457752330066
10993285214971
11353282677585
121406092608a3
13728880b4b6a
143610a731b07
151ac86eda566
hexe7446992fb

993285214971 has 16 divisors (see below), whose sum is σ = 1593239443200. Its totient is φ = 537718311648.

The previous prime is 993285214921. The next prime is 993285214973. The reversal of 993285214971 is 179412582399.

It is not a de Polignac number, because 993285214971 - 26 = 993285214907 is a prime.

It is not an unprimeable number, because it can be changed into a prime (993285214973) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1244717916 + ... + 1244718713.

It is an arithmetic number, because the mean of its divisors is an integer number (99577465200).

Almost surely, 2993285214971 is an apocalyptic number.

993285214971 is a deficient number, since it is larger than the sum of its proper divisors (599954228229).

993285214971 is a wasteful number, since it uses less digits than its factorization.

993285214971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2489436658.

The product of its digits is 9797760, while the sum is 60.

The spelling of 993285214971 in words is "nine hundred ninety-three billion, two hundred eighty-five million, two hundred fourteen thousand, nine hundred seventy-one".

Divisors: 1 3 7 19 21 57 133 399 2489436629 7468309887 17426056403 47299295951 52278169209 141897887853 331095071657 993285214971