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30145296 = 243659953
BaseRepresentation
bin111001011111…
…1101100010000
32002201112120110
41302333230100
530204122141
62554041320
7514142106
oct162775420
962645513
1030145296
111601a675
12a119240
13632616c
144009c76
1529a6e16
hex1cbfb10

30145296 has 40 divisors (see below), whose sum is σ = 78075360. Its totient is φ = 10022656.

The previous prime is 30145289. The next prime is 30145303. The reversal of 30145296 is 69254103.

It is an interprime number because it is at equal distance from previous prime (30145289) and next prime (30145303).

It is an alternating number because its digits alternate between odd and even.

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, 31156 + ... + 32108.

It is an arithmetic number, because the mean of its divisors is an integer number (1951884).

Almost surely, 230145296 is an apocalyptic number.

It is an amenable number.

30145296 is an abundant number, since it is smaller than the sum of its proper divisors (47930064).

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

30145296 is a wasteful number, since it uses less digits than its factorization.

30145296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1623 (or 1617 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 30145296 is about 5490.4732036501. The cubic root of 30145296 is about 311.2240745490.

Adding to 30145296 its reverse (69254103), we get a palindrome (99399399).

The spelling of 30145296 in words is "thirty million, one hundred forty-five thousand, two hundred ninety-six".

Divisors: 1 2 3 4 6 8 12 16 24 48 659 953 1318 1906 1977 2636 2859 3812 3954 5272 5718 7624 7908 10544 11436 15248 15816 22872 31632 45744 628027 1256054 1884081 2512108 3768162 5024216 7536324 10048432 15072648 30145296