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30499051 = 1115311811
BaseRepresentation
bin111010001011…
…0000011101011
32010101111211111
41310112003223
530301432201
63005411151
7520144342
oct164260353
963344744
1030499051
1116241430
12a269ab7
13641b19b
14409cb59
152a26b51
hex1d160eb

30499051 has 8 divisors (see below), whose sum is σ = 33311808. Its totient is φ = 27693000.

The previous prime is 30499019. The next prime is 30499069. The reversal of 30499051 is 15099403.

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 30499051 - 25 = 30499019 is a prime.

It is a super-2 number, since 2×304990512 = 1860384223801202, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30490051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15936 + ... + 17746.

It is an arithmetic number, because the mean of its divisors is an integer number (4163976).

Almost surely, 230499051 is an apocalyptic number.

30499051 is a deficient number, since it is larger than the sum of its proper divisors (2812757).

30499051 is a wasteful number, since it uses less digits than its factorization.

30499051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3353.

The product of its (nonzero) digits is 4860, while the sum is 31.

The square root of 30499051 is about 5522.5945895023. The cubic root of 30499051 is about 312.4367479449.

It can be divided in two parts, 3049 and 9051, that added together give a square (12100 = 1102).

The spelling of 30499051 in words is "thirty million, four hundred ninety-nine thousand, fifty-one".

Divisors: 1 11 1531 1811 16841 19921 2772641 30499051