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87934218434 = 2463257936821
BaseRepresentation
bin101000111100101001…
…0011011000011000010
322101222021202010112222
41101321102123003002
52420042124442214
6104221343251042
76232043344526
oct1217122330302
9271867663488
1087934218434
11343246348a7
1215060ba9a82
1383a4b5551a
1443827dbd86
152449d2338e
hex147949b0c2

87934218434 has 16 divisors (see below), whose sum is σ = 132241057920. Its totient is φ = 43853945520.

The previous prime is 87934218409. The next prime is 87934218451. The reversal of 87934218434 is 43481243978.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2369744 + ... + 2406564.

It is an arithmetic number, because the mean of its divisors is an integer number (8265066120).

Almost surely, 287934218434 is an apocalyptic number.

87934218434 is a deficient number, since it is larger than the sum of its proper divisors (44306839486).

87934218434 is a wasteful number, since it uses less digits than its factorization.

87934218434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39865.

The product of its digits is 4644864, while the sum is 53.

The spelling of 87934218434 in words is "eighty-seven billion, nine hundred thirty-four million, two hundred eighteen thousand, four hundred thirty-four".

Divisors: 1 2 463 926 2579 5158 36821 73642 1194077 2388154 17048123 34096246 94961359 189922718 43967109217 87934218434