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30112668 = 22331032707
BaseRepresentation
bin111001011011…
…1101110011100
32002122212211000
41302313232130
530202101133
62553230300
7513645015
oct162675634
962585730
1030112668
1115aa8103
12a102390
136314361
143ddc00c
15299c413
hex1cb7b9c

30112668 has 48 divisors (see below), whose sum is σ = 78856960. Its totient is φ = 9936432.

The previous prime is 30112657. The next prime is 30112697. The reversal of 30112668 is 86621103.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9771 + ... + 12477.

Almost surely, 230112668 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30112668, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39428480).

30112668 is an abundant number, since it is smaller than the sum of its proper divisors (48744292).

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

30112668 is a wasteful number, since it uses less digits than its factorization.

30112668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2823 (or 2815 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 30112668 is about 5487.5010706149. The cubic root of 30112668 is about 311.1117487326. Note that the first 3 decimals are identical.

The spelling of 30112668 in words is "thirty million, one hundred twelve thousand, six hundred sixty-eight".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 103 108 206 309 412 618 927 1236 1854 2707 2781 3708 5414 5562 8121 10828 11124 16242 24363 32484 48726 73089 97452 146178 278821 292356 557642 836463 1115284 1672926 2509389 3345852 5018778 7528167 10037556 15056334 30112668