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30415244 = 22173471289
BaseRepresentation
bin111010000000…
…1100110001100
32010020020212112
41310001212030
530241241434
63003523152
7516345116
oct164014614
963206775
1030415244
1116194472
12a2294b8
1363bbcb2
14407a3b6
152a0bdce
hex1d0198c

30415244 has 24 divisors (see below), whose sum is σ = 56563920. Its totient is φ = 14260736.

The previous prime is 30415213. The next prime is 30415283. The reversal of 30415244 is 44251403.

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, 22952 + ... + 24240.

It is an arithmetic number, because the mean of its divisors is an integer number (2356830).

Almost surely, 230415244 is an apocalyptic number.

30415244 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

30415244 is a deficient number, since it is larger than the sum of its proper divisors (26148676).

30415244 is a wasteful number, since it uses less digits than its factorization.

30415244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1657 (or 1655 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 30415244 is about 5515.0017225745. The cubic root of 30415244 is about 312.1503083564.

Adding to 30415244 its reverse (44251403), we get a palindrome (74666647).

The spelling of 30415244 in words is "thirty million, four hundred fifteen thousand, two hundred forty-four".

Divisors: 1 2 4 17 34 68 347 694 1289 1388 2578 5156 5899 11798 21913 23596 43826 87652 447283 894566 1789132 7603811 15207622 30415244