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30410380 = 22573111331
BaseRepresentation
bin111010000000…
…0011010001100
32010020000012101
41310000122030
530241113010
63003444444
7516325000
oct164003214
963200171
1030410380
1116190850
12a226724
1363b9a10
144078700
152a0a73a
hex1d0068c

30410380 has 192 divisors, whose sum is σ = 90316800. Its totient is φ = 8467200.

The previous prime is 30410371. The next prime is 30410381. The reversal of 30410380 is 8301403.

It is not an unprimeable number, because it can be changed into a prime (30410381) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 980965 + ... + 980995.

It is an arithmetic number, because the mean of its divisors is an integer number (470400).

Almost surely, 230410380 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 30410380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45158400).

30410380 is an abundant number, since it is smaller than the sum of its proper divisors (59906420).

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

30410380 is a wasteful number, since it uses less digits than its factorization.

30410380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85 (or 69 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 30410380 is about 5514.5607259328. The cubic root of 30410380 is about 312.1336677968.

Adding to 30410380 its reverse (8301403), we get a palindrome (38711783).

The spelling of 30410380 in words is "thirty million, four hundred ten thousand, three hundred eighty".