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30343932 = 2232842887
BaseRepresentation
bin111001111000…
…0001011111100
32010002122001100
41303300023330
530232001212
63002213100
7515630163
oct163601374
963078040
1030343932
1116145933
12a1b4190
1363956b8
14405c3da
1529e5bdc
hex1cf02fc

30343932 has 18 divisors (see below), whose sum is σ = 76702808. Its totient is φ = 10114632.

The previous prime is 30343921. The next prime is 30343933. The reversal of 30343932 is 23934303.

It is a tau number, because it is divible by the number of its divisors (18).

It is a junction number, because it is equal to n+sod(n) for n = 30343896 and 30343905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30343933) 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, 421408 + ... + 421479.

Almost surely, 230343932 is an apocalyptic number.

It is an amenable number.

30343932 is an abundant number, since it is smaller than the sum of its proper divisors (46358876).

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

30343932 is a wasteful number, since it uses less digits than its factorization.

30343932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 842897 (or 842892 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 27.

The square root of 30343932 is about 5508.5326539833. The cubic root of 30343932 is about 311.9061601416.

The spelling of 30343932 in words is "thirty million, three hundred forty-three thousand, nine hundred thirty-two".

Divisors: 1 2 3 4 6 9 12 18 36 842887 1685774 2528661 3371548 5057322 7585983 10114644 15171966 30343932