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30126156 = 2232510513
BaseRepresentation
bin111001011101…
…1000001001100
32002200120022120
41302323001030
530203014111
62553412540
7514032234
oct162730114
962616276
1030126156
1116007255
12a10a150
13631a538
144002cc4
1529a1406
hex1cbb04c

30126156 has 12 divisors (see below), whose sum is σ = 70294392. Its totient is φ = 10042048.

The previous prime is 30126143. The next prime is 30126169. The reversal of 30126156 is 65162103.

It is an interprime number because it is at equal distance from previous prime (30126143) and next prime (30126169).

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1255245 + ... + 1255268.

It is an arithmetic number, because the mean of its divisors is an integer number (5857866).

Almost surely, 230126156 is an apocalyptic number.

It is an amenable number.

30126156 is an abundant number, since it is smaller than the sum of its proper divisors (40168236).

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

30126156 is a wasteful number, since it uses less digits than its factorization.

30126156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2510520 (or 2510518 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 30126156 is about 5488.7299077291. The cubic root of 30126156 is about 311.1581926290.

Adding to 30126156 its reverse (65162103), we get a palindrome (95288259).

The spelling of 30126156 in words is "thirty million, one hundred twenty-six thousand, one hundred fifty-six".

Divisors: 1 2 3 4 6 12 2510513 5021026 7531539 10042052 15063078 30126156