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19281412934 = 277191915499
BaseRepresentation
bin10001111101010000…
…110000001101000110
31211202202101021002222
4101331100300031012
5303442020203214
612505135332342
71251545206610
oct217520601506
954682337088
1019281412934
1181a4944a13
1238a13810b2
131a8385b2a4
14d0caaddb0
1577cb2638e
hex47d430346

19281412934 has 16 divisors (see below), whose sum is σ = 33099840000. Its totient is φ = 8251965384.

The previous prime is 19281412919. The next prime is 19281412999. The reversal of 19281412934 is 43921418291.

It is a congruent 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, 947684 + ... + 967815.

It is an arithmetic number, because the mean of its divisors is an integer number (2068740000).

Almost surely, 219281412934 is an apocalyptic number.

19281412934 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

19281412934 is a deficient number, since it is larger than the sum of its proper divisors (13818427066).

19281412934 is a wasteful number, since it uses less digits than its factorization.

19281412934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1916227.

The product of its digits is 124416, while the sum is 44.

The spelling of 19281412934 in words is "nineteen billion, two hundred eighty-one million, four hundred twelve thousand, nine hundred thirty-four".

Divisors: 1 2 7 14 719 1438 5033 10066 1915499 3830998 13408493 26816986 1377243781 2754487562 9640706467 19281412934