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30152693 = 43636911
BaseRepresentation
bin111001100000…
…1011111110101
32002201220201102
41303001133311
530204341233
62554135445
7514202504
oct163013765
962656642
1030152693
111602518a
12a121585
13632963c
14400c83b
1529a91e8
hex1cc17f5

30152693 has 4 divisors (see below), whose sum is σ = 30163968. Its totient is φ = 30141420.

The previous prime is 30152657. The next prime is 30152767. The reversal of 30152693 is 39625103.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 30152693 - 212 = 30148597 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30152653) 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, 908 + ... + 7818.

It is an arithmetic number, because the mean of its divisors is an integer number (7540992).

Almost surely, 230152693 is an apocalyptic number.

It is an amenable number.

30152693 is a deficient number, since it is larger than the sum of its proper divisors (11275).

30152693 is an equidigital number, since it uses as much as digits as its factorization.

30152693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11274.

The product of its (nonzero) digits is 4860, while the sum is 29.

The square root of 30152693 is about 5491.1467836874. The cubic root of 30152693 is about 311.2495283402.

Adding to 30152693 its reverse (39625103), we get a palindrome (69777796).

The spelling of 30152693 in words is "thirty million, one hundred fifty-two thousand, six hundred ninety-three".

Divisors: 1 4363 6911 30152693