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30126408 = 23313223433
BaseRepresentation
bin111001011101…
…1000101001000
32002200120122220
41302323011020
530203021113
62553414040
7514033044
oct162730510
962616586
1030126408
1116007464
12a10a320
13631a6a0
144003024
1529a1523
hex1cbb148

30126408 has 64 divisors (see below), whose sum is σ = 81661440. Its totient is φ = 9206784.

The previous prime is 30126391. The next prime is 30126409. The reversal of 30126408 is 80462103.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (30126409) 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, 69360 + ... + 69792.

It is an arithmetic number, because the mean of its divisors is an integer number (1275960).

Almost surely, 230126408 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 30126408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40830720).

30126408 is an abundant number, since it is smaller than the sum of its proper divisors (51535032).

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

30126408 is a wasteful number, since it uses less digits than its factorization.

30126408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 678 (or 674 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 30126408 is about 5488.7528638116. The cubic root of 30126408 is about 311.1590602211.

The spelling of 30126408 in words is "thirty million, one hundred twenty-six thousand, four hundred eight".

Divisors: 1 2 3 4 6 8 12 13 24 26 39 52 78 104 156 223 312 433 446 669 866 892 1299 1338 1732 1784 2598 2676 2899 3464 5196 5352 5629 5798 8697 10392 11258 11596 16887 17394 22516 23192 33774 34788 45032 67548 69576 96559 135096 193118 289677 386236 579354 772472 1158708 1255267 2317416 2510534 3765801 5021068 7531602 10042136 15063204 30126408