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30812027 = 53678677
BaseRepresentation
bin111010110001…
…0011101111011
32010222102011012
41311202131323
530341441102
63020224135
7522616661
oct165423573
963872135
1030812027
1116435594
12a39b04b
1364ca78c
144140c31
152a89752
hex1d6277b

30812027 has 8 divisors (see below), whose sum is σ = 31865616. Its totient is φ = 29776032.

The previous prime is 30812021. The next prime is 30812029. The reversal of 30812027 is 72021803.

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 30812027 - 216 = 30746491 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30811993 and 30812011.

It is not an unprimeable number, because it can be changed into a prime (30812021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 788 + ... + 7889.

It is an arithmetic number, because the mean of its divisors is an integer number (3983202).

Almost surely, 230812027 is an apocalyptic number.

30812027 is a deficient number, since it is larger than the sum of its proper divisors (1053589).

30812027 is an equidigital number, since it uses as much as digits as its factorization.

30812027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8797.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 30812027 is about 5550.8582219329. The cubic root of 30812027 is about 313.5018369605.

The spelling of 30812027 in words is "thirty million, eight hundred twelve thousand, twenty-seven".

Divisors: 1 53 67 3551 8677 459881 581359 30812027