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30486126 = 2311597829
BaseRepresentation
bin111010001001…
…0111001101110
32010100212002210
41310102321232
530301024001
63005231250
7520061556
oct164227156
963325083
1030486126
1116232750
12a262526
136415338
144098166
152a22dd6
hex1d12e6e

30486126 has 32 divisors (see below), whose sum is σ = 67651200. Its totient is φ = 9080480.

The previous prime is 30486121. The next prime is 30486161. The reversal of 30486126 is 62168403.

It is a junction number, because it is equal to n+sod(n) for n = 30486093 and 30486102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30486121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21 + ... + 7808.

It is an arithmetic number, because the mean of its divisors is an integer number (2114100).

Almost surely, 230486126 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30486126, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33825600).

30486126 is an abundant number, since it is smaller than the sum of its proper divisors (37165074).

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

30486126 is a wasteful number, since it uses less digits than its factorization.

30486126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7904.

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 30486126 is about 5521.4242727760. The cubic root of 30486126 is about 312.3926065108.

The spelling of 30486126 in words is "thirty million, four hundred eighty-six thousand, one hundred twenty-six".

Divisors: 1 2 3 6 11 22 33 59 66 118 177 354 649 1298 1947 3894 7829 15658 23487 46974 86119 172238 258357 461911 516714 923822 1385733 2771466 5081021 10162042 15243063 30486126