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30412120 = 235863881
BaseRepresentation
bin111010000000…
…0110101011000
32010020002120211
41310000311120
530241141440
63003500504
7516333034
oct164006530
963202524
1030412120
1116192092
12a227734
1363ba74b
1440791c4
152a0aeea
hex1d00d58

30412120 has 32 divisors (see below), whose sum is σ = 68584320. Its totient is φ = 12136960.

The previous prime is 30412111. The next prime is 30412159. The reversal of 30412120 is 2121403.

It is a self number, because there is not a number n which added to its sum of digits gives 30412120.

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, 34080 + ... + 34960.

It is an arithmetic number, because the mean of its divisors is an integer number (2143260).

Almost surely, 230412120 is an apocalyptic number.

It is an amenable number.

30412120 is an abundant number, since it is smaller than the sum of its proper divisors (38172200).

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

30412120 is a wasteful number, since it uses less digits than its factorization.

30412120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1755 (or 1751 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 30412120 is about 5514.7184878287. The cubic root of 30412120 is about 312.1396208324.

Adding to 30412120 its reverse (2121403), we get a palindrome (32533523).

The spelling of 30412120 in words is "thirty million, four hundred twelve thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 863 881 1726 1762 3452 3524 4315 4405 6904 7048 8630 8810 17260 17620 34520 35240 760303 1520606 3041212 3801515 6082424 7603030 15206060 30412120