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30293105 = 56058621
BaseRepresentation
bin111001110001…
…1110001110001
32010000001022212
41303203301301
530223334410
63001141505
7515326043
oct163436161
963001285
1030293105
1116110727
12a18a895
13637851b
144047a93
1529d5b05
hex1ce3c71

30293105 has 4 divisors (see below), whose sum is σ = 36351732. Its totient is φ = 24234480.

The previous prime is 30293101. The next prime is 30293119. The reversal of 30293105 is 50139203.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6390784 + 23902321 = 2528^2 + 4889^2 .

It is not a de Polignac number, because 30293105 - 22 = 30293101 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30293101) 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, 3029306 + ... + 3029315.

It is an arithmetic number, because the mean of its divisors is an integer number (9087933).

Almost surely, 230293105 is an apocalyptic number.

It is an amenable number.

30293105 is a deficient number, since it is larger than the sum of its proper divisors (6058627).

30293105 is an equidigital number, since it uses as much as digits as its factorization.

30293105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6058626.

The product of its (nonzero) digits is 810, while the sum is 23.

The square root of 30293105 is about 5503.9172413836. The cubic root of 30293105 is about 311.7319120777.

The spelling of 30293105 in words is "thirty million, two hundred ninety-three thousand, one hundred five".

Divisors: 1 5 6058621 30293105