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30084837 = 310028279
BaseRepresentation
bin111001011000…
…0111011100101
32002121110122020
41302300323211
530200203322
62552453353
7513500616
oct162607345
962543566
1030084837
1115a89202
12a0aa259
1363047a3
143dd1c0d
15299405c
hex1cb0ee5

30084837 has 4 divisors (see below), whose sum is σ = 40113120. Its totient is φ = 20056556.

The previous prime is 30084829. The next prime is 30084839. The reversal of 30084837 is 73848003.

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.

It is a cyclic number.

It is not a de Polignac number, because 30084837 - 23 = 30084829 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30084798 and 30084807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30084839) 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, 5014137 + ... + 5014142.

It is an arithmetic number, because the mean of its divisors is an integer number (10028280).

Almost surely, 230084837 is an apocalyptic number.

It is an amenable number.

30084837 is a deficient number, since it is larger than the sum of its proper divisors (10028283).

30084837 is a wasteful number, since it uses less digits than its factorization.

30084837 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10028282.

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 30084837 is about 5484.9646306973. The cubic root of 30084837 is about 311.0158730263.

The spelling of 30084837 in words is "thirty million, eighty-four thousand, eight hundred thirty-seven".

Divisors: 1 3 10028279 30084837