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19799234 = 2721315541
BaseRepresentation
bin100101110000…
…1110011000010
31101020220102222
41023201303002
520032033414
61544211042
7330201500
oct113416302
941226388
1019799234
11101a3504
126769a82
134142c30
1428b5670
151b1168e
hex12e1cc2

19799234 has 24 divisors (see below), whose sum is σ = 37207548. Its totient is φ = 7832160.

The previous prime is 19799231. The next prime is 19799239. The reversal of 19799234 is 43299791.

It can be written as a sum of positive squares in 2 ways, for example, as 19758025 + 41209 = 4445^2 + 203^2 .

It is not an unprimeable number, because it can be changed into a prime (19799231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6497 + ... + 9044.

Almost surely, 219799234 is an apocalyptic number.

19799234 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

19799234 is a deficient number, since it is larger than the sum of its proper divisors (17408314).

19799234 is a wasteful number, since it uses less digits than its factorization.

19799234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15570 (or 15563 counting only the distinct ones).

The product of its digits is 122472, while the sum is 44.

The square root of 19799234 is about 4449.6330185758. The cubic root of 19799234 is about 270.5304341511.

The spelling of 19799234 in words is "nineteen million, seven hundred ninety-nine thousand, two hundred thirty-four".

Divisors: 1 2 7 13 14 26 49 91 98 182 637 1274 15541 31082 108787 202033 217574 404066 761509 1414231 1523018 2828462 9899617 19799234