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30046540 = 2251502327
BaseRepresentation
bin111001010011…
…1100101001100
32002112112002211
41302213211030
530142442130
62552000204
7513251146
oct162474514
962475084
1030046540
1115a62457
12a090064
1362c0224
143dc1c96
152987a2a
hex1ca794c

30046540 has 12 divisors (see below), whose sum is σ = 63097776. Its totient is φ = 12018608.

The previous prime is 30046537. The next prime is 30046547. The reversal of 30046540 is 4564003.

It is not an unprimeable number, because it can be changed into a prime (30046547) 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 3 ways as a sum of consecutive naturals, for example, 751144 + ... + 751183.

It is an arithmetic number, because the mean of its divisors is an integer number (5258148).

Almost surely, 230046540 is an apocalyptic number.

It is an amenable number.

30046540 is an abundant number, since it is smaller than the sum of its proper divisors (33051236).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30046540 is a wasteful number, since it uses less digits than its factorization.

30046540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1502336 (or 1502334 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 30046540 is about 5481.4724299225. The cubic root of 30046540 is about 310.8838460237.

The spelling of 30046540 in words is "thirty million, forty-six thousand, five hundred forty".

Divisors: 1 2 4 5 10 20 1502327 3004654 6009308 7511635 15023270 30046540