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30489116 = 2275711907
BaseRepresentation
bin111010001001…
…1101000011100
32010101000012112
41310103220130
530301122431
63005253152
7520103360
oct164235034
963330175
1030489116
1116234a19
12a2641b8
1364167c8
1440992a0
152a23c2b
hex1d13a1c

30489116 has 24 divisors (see below), whose sum is σ = 61117056. Its totient is φ = 13037040.

The previous prime is 30489101. The next prime is 30489149. The reversal of 30489116 is 61198403.

It is a happy number.

It is a super-2 number, since 2×304891162 = 1859172388922912, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15035 + ... + 16941.

It is an arithmetic number, because the mean of its divisors is an integer number (2546544).

Almost surely, 230489116 is an apocalyptic number.

It is an amenable number.

30489116 is an abundant number, since it is smaller than the sum of its proper divisors (30627940).

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

30489116 is a wasteful number, since it uses less digits than its factorization.

30489116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2489 (or 2487 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 30489116 is about 5521.6950296082. The cubic root of 30489116 is about 312.4028190619.

The spelling of 30489116 in words is "thirty million, four hundred eighty-nine thousand, one hundred sixteen".

Divisors: 1 2 4 7 14 28 571 1142 1907 2284 3814 3997 7628 7994 13349 15988 26698 53396 1088897 2177794 4355588 7622279 15244558 30489116