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18883012 = 226770459
BaseRepresentation
bin100100000001…
…0000111000100
31022112100121211
41020002013010
514313224022
61512421204
7316334341
oct110020704
938470554
1018883012
11a7280a5
1263a7804
133bb1ba5
1427177c8
1519cee77
hex12021c4

18883012 has 12 divisors (see below), whose sum is σ = 33538960. Its totient is φ = 9300456.

The previous prime is 18882991. The next prime is 18883013. The reversal of 18883012 is 21038881.

It is not an unprimeable number, because it can be changed into a prime (18883013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34962 + ... + 35497.

Almost surely, 218883012 is an apocalyptic number.

It is an amenable number.

18883012 is a deficient number, since it is larger than the sum of its proper divisors (14655948).

18883012 is a wasteful number, since it uses less digits than its factorization.

18883012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70530 (or 70528 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 31.

The square root of 18883012 is about 4345.4587790014. The cubic root of 18883012 is about 266.2913685931.

It can be divided in two parts, 1888 and 3012, that added together give a square (4900 = 702).

The spelling of 18883012 in words is "eighteen million, eight hundred eighty-three thousand, twelve".

Divisors: 1 2 4 67 134 268 70459 140918 281836 4720753 9441506 18883012