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30022668 = 22321364151
BaseRepresentation
bin111001010000…
…1110000001100
32002111022100200
41302201300030
530141211133
62551253500
7513121434
oct162416014
962438320
1030022668
1115a46525
12a07a290
1362b23c0
143db72c4
152980913
hex1ca1c0c

30022668 has 36 divisors (see below), whose sum is σ = 81729648. Its totient is φ = 9237600.

The previous prime is 30022667. The next prime is 30022669. The reversal of 30022668 is 86622003.

It is an interprime number because it is at equal distance from previous prime (30022667) and next prime (30022669).

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (30022667) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31608 + ... + 32543.

It is an arithmetic number, because the mean of its divisors is an integer number (2270268).

Almost surely, 230022668 is an apocalyptic number.

It is an amenable number.

30022668 is an abundant number, since it is smaller than the sum of its proper divisors (51706980).

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

30022668 is a wasteful number, since it uses less digits than its factorization.

30022668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64174 (or 64169 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 30022668 is about 5479.2944801315. The cubic root of 30022668 is about 310.8014917217.

The spelling of 30022668 in words is "thirty million, twenty-two thousand, six hundred sixty-eight".

Divisors: 1 2 3 4 6 9 12 13 18 26 36 39 52 78 117 156 234 468 64151 128302 192453 256604 384906 577359 769812 833963 1154718 1667926 2309436 2501889 3335852 5003778 7505667 10007556 15011334 30022668