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30146352 = 243628049
BaseRepresentation
bin111001011111…
…1111100110000
32002201121000120
41302333330300
530204140402
62554050240
7514145145
oct162777460
962647016
1030146352
1116020445
12a119980
1363267a2
14400a3cc
1529a73bc
hex1cbff30

30146352 has 20 divisors (see below), whose sum is σ = 77878200. Its totient is φ = 10048768.

The previous prime is 30146351. The next prime is 30146377. The reversal of 30146352 is 25364103.

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 (30146351) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 313977 + ... + 314072.

It is an arithmetic number, because the mean of its divisors is an integer number (3893910).

Almost surely, 230146352 is an apocalyptic number.

It is an amenable number.

30146352 is an abundant number, since it is smaller than the sum of its proper divisors (47731848).

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

30146352 is a wasteful number, since it uses less digits than its factorization.

30146352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 628060 (or 628054 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 30146352 is about 5490.5693693824. The cubic root of 30146352 is about 311.2277086018.

The spelling of 30146352 in words is "thirty million, one hundred forty-six thousand, three hundred fifty-two".

Divisors: 1 2 3 4 6 8 12 16 24 48 628049 1256098 1884147 2512196 3768294 5024392 7536588 10048784 15073176 30146352