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30098953 = 131229763
BaseRepresentation
bin111001011010…
…0011000001001
32002122012000001
41302310120021
530201131303
62553043001
7513560023
oct162643011
962565001
1030098953
1115a98875
12a0b6461
13630b041
143dd7013
15299831d
hex1cb4609

30098953 has 4 divisors (see below), whose sum is σ = 30328848. Its totient is φ = 29869060.

The previous prime is 30098951. The next prime is 30098963. The reversal of 30098953 is 35989003.

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 an emirpimes, since its reverse is a distinct semiprime: 35989003 = 79455557.

It is a cyclic number.

It is not a de Polignac number, because 30098953 - 21 = 30098951 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30098951) 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 3 ways as a sum of consecutive naturals, for example, 114751 + ... + 115012.

It is an arithmetic number, because the mean of its divisors is an integer number (7582212).

Almost surely, 230098953 is an apocalyptic number.

It is an amenable number.

30098953 is a deficient number, since it is larger than the sum of its proper divisors (229895).

30098953 is a wasteful number, since it uses less digits than its factorization.

30098953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229894.

The product of its (nonzero) digits is 29160, while the sum is 37.

The square root of 30098953 is about 5486.2512702209. The cubic root of 30098953 is about 311.0645089730.

The spelling of 30098953 in words is "thirty million, ninety-eight thousand, nine hundred fifty-three".

Divisors: 1 131 229763 30098953