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30283829 = 53210781
BaseRepresentation
bin111001110000…
…1100000110101
32002222120121022
41303201200311
530223040304
63001030525
7515260022
oct163414065
962876538
1030283829
1116104764
12a185445
136374234
144044549
1529d2ebe
hex1ce1835

30283829 has 6 divisors (see below), whose sum is σ = 30868866. Its totient is φ = 29709680.

The previous prime is 30283769. The next prime is 30283849. The reversal of 30283829 is 92838203.

It can be written as a sum of positive squares in 3 ways, for example, as 7263025 + 23020804 = 2695^2 + 4798^2 .

It is not a de Polignac number, because 30283829 - 220 = 29235253 is a prime.

It is a super-2 number, since 2×302838292 = 1834220597802482, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30283849) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2582 + ... + 8199.

It is an arithmetic number, because the mean of its divisors is an integer number (5144811).

Almost surely, 230283829 is an apocalyptic number.

It is an amenable number.

30283829 is a deficient number, since it is larger than the sum of its proper divisors (585037).

30283829 is an equidigital number, since it uses as much as digits as its factorization.

30283829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10887 (or 10834 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 30283829 is about 5503.0745043112. The cubic root of 30283829 is about 311.7000905305.

The spelling of 30283829 in words is "thirty million, two hundred eighty-three thousand, eight hundred twenty-nine".

Divisors: 1 53 2809 10781 571393 30283829