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30163146 = 23131920353
BaseRepresentation
bin111001100010…
…0000011001010
32002202110001120
41303010003022
530210210041
62554300110
7514245126
oct163040312
962673046
1030163146
1116032022
12a127636
136331320
144012586
1529ac366
hex1cc40ca

30163146 has 32 divisors (see below), whose sum is σ = 68389440. Its totient is φ = 8792064.

The previous prime is 30163141. The next prime is 30163157. The reversal of 30163146 is 64136103.

It is not an unprimeable number, because it can be changed into a prime (30163141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8695 + ... + 11658.

It is an arithmetic number, because the mean of its divisors is an integer number (2137170).

Almost surely, 230163146 is an apocalyptic number.

30163146 is an abundant number, since it is smaller than the sum of its proper divisors (38226294).

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

30163146 is a wasteful number, since it uses less digits than its factorization.

30163146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20390.

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 30163146 is about 5492.0985060357. The cubic root of 30163146 is about 311.2854910256.

Adding to 30163146 its reverse (64136103), we get a palindrome (94299249).

The spelling of 30163146 in words is "thirty million, one hundred sixty-three thousand, one hundred forty-six".

Divisors: 1 2 3 6 13 19 26 38 39 57 78 114 247 494 741 1482 20353 40706 61059 122118 264589 386707 529178 773414 793767 1160121 1587534 2320242 5027191 10054382 15081573 30163146