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27003031 = 112984649
BaseRepresentation
bin110011100000…
…0100010010111
31212210220012021
41213000202113
523403044111
62402434011
7445344016
oct147004227
955726167
1027003031
1114273860
129062907
135795b33
14382ca7d
152585d71
hex19c0897

27003031 has 8 divisors (see below), whose sum is σ = 30474000. Its totient is φ = 23701440.

The previous prime is 27003029. The next prime is 27003037. The reversal of 27003031 is 13030072.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 27003031 - 21 = 27003029 is a prime.

It is a super-2 number, since 2×270030312 = 1458327366373922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 27002996 and 27003014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27003037) 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 7 ways as a sum of consecutive naturals, for example, 42006 + ... + 42643.

It is an arithmetic number, because the mean of its divisors is an integer number (3809250).

Almost surely, 227003031 is an apocalyptic number.

27003031 is a deficient number, since it is larger than the sum of its proper divisors (3470969).

27003031 is a wasteful number, since it uses less digits than its factorization.

27003031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84689.

The product of its (nonzero) digits is 126, while the sum is 16.

The square root of 27003031 is about 5196.4440726327. Note that the first 3 decimals coincide. The cubic root of 27003031 is about 300.0112255059.

The spelling of 27003031 in words is "twenty-seven million, three thousand, thirty-one".

Divisors: 1 11 29 319 84649 931139 2454821 27003031