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30050080 = 255293641
BaseRepresentation
bin111001010100…
…0011100100000
32002112200221221
41302220130200
530143100310
62552024424
7513264364
oct162503440
962480857
1030050080
1115a65085
12a092114
1362c1a18
143dc32a4
152988ada
hex1ca8720

30050080 has 48 divisors (see below), whose sum is σ = 71346744. Its totient is φ = 11960320.

The previous prime is 30050071. The next prime is 30050087. The reversal of 30050080 is 8005003.

It can be written as a sum of positive squares in 4 ways, for example, as 29986576 + 63504 = 5476^2 + 252^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (30050087) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46560 + ... + 47200.

Almost surely, 230050080 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 30050080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35673372).

30050080 is an abundant number, since it is smaller than the sum of its proper divisors (41296664).

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

30050080 is a wasteful number, since it uses less digits than its factorization.

30050080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 949 (or 941 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 30050080 is about 5481.7953263507. The cubic root of 30050080 is about 310.8960547017.

Adding to 30050080 its reverse (8005003), we get a palindrome (38055083).

The spelling of 30050080 in words is "thirty million, fifty thousand, eighty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 160 293 586 641 1172 1282 1465 2344 2564 2930 3205 4688 5128 5860 6410 9376 10256 11720 12820 20512 23440 25640 46880 51280 102560 187813 375626 751252 939065 1502504 1878130 3005008 3756260 6010016 7512520 15025040 30050080