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30048773 = 37812129
BaseRepresentation
bin111001010100…
…0001000000101
32002112122011112
41302220020011
530143030043
62552014405
7513260516
oct162501005
962478145
1030048773
1115a640a7
12a091405
1362c1251
143dc2a0d
152988518
hex1ca8205

30048773 has 4 divisors (see below), whose sum is σ = 30860940. Its totient is φ = 29236608.

The previous prime is 30048769. The next prime is 30048791. The reversal of 30048773 is 37784003.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 37784003 = 38639781.

It can be written as a sum of positive squares in 2 ways, for example, as 22877089 + 7171684 = 4783^2 + 2678^2 .

It is a cyclic number.

It is not a de Polignac number, because 30048773 - 22 = 30048769 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30048713) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 406028 + ... + 406101.

It is an arithmetic number, because the mean of its divisors is an integer number (7715235).

Almost surely, 230048773 is an apocalyptic number.

It is an amenable number.

30048773 is a deficient number, since it is larger than the sum of its proper divisors (812167).

30048773 is an equidigital number, since it uses as much as digits as its factorization.

30048773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 812166.

The product of its (nonzero) digits is 14112, while the sum is 32.

The square root of 30048773 is about 5481.6761122854. The cubic root of 30048773 is about 310.8915472591.

The spelling of 30048773 in words is "thirty million, forty-eight thousand, seven hundred seventy-three".

Divisors: 1 37 812129 30048773