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1812680284 = 221726657063
BaseRepresentation
bin110110000001011…
…0100111001011100
311200022212200212211
41230002310321130
512203021232114
6455512010204
762630346112
oct15402647134
94608780784
101812680284
11850235588
12427090964
1322b70c8ac
14132a57ab2
15a92106c4
hex6c0b4e5c

1812680284 has 12 divisors (see below), whose sum is σ = 3358790064. Its totient is φ = 853025984.

The previous prime is 1812680273. The next prime is 1812680299. The reversal of 1812680284 is 4820862181.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13328464 + ... + 13328599.

It is an arithmetic number, because the mean of its divisors is an integer number (279899172).

Almost surely, 21812680284 is an apocalyptic number.

It is an amenable number.

1812680284 is a deficient number, since it is larger than the sum of its proper divisors (1546109780).

1812680284 is a wasteful number, since it uses less digits than its factorization.

1812680284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26657084 (or 26657082 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 40.

The square root of 1812680284 is about 42575.5831903686. The cubic root of 1812680284 is about 1219.2901639801.

The spelling of 1812680284 in words is "one billion, eight hundred twelve million, six hundred eighty thousand, two hundred eighty-four".

Divisors: 1 2 4 17 34 68 26657063 53314126 106628252 453170071 906340142 1812680284