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30151156 = 2271076827
BaseRepresentation
bin111001100000…
…1000111110100
32002201211121111
41303001013310
530204314111
62554124404
7514165150
oct163010764
962654544
1030151156
1116024012
12a120704
136328a29
14400c060
1529a8a21
hex1cc11f4

30151156 has 12 divisors (see below), whose sum is σ = 60302368. Its totient is φ = 12921912.

The previous prime is 30151129. The next prime is 30151169. The reversal of 30151156 is 65115103.

30151156 is an admirable number.

It is a congruent number.

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, 538386 + ... + 538441.

Almost surely, 230151156 is an apocalyptic number.

It is an amenable number.

30151156 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

30151156 is a wasteful number, since it uses less digits than its factorization.

30151156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1076838 (or 1076836 counting only the distinct ones).

The product of its (nonzero) digits is 450, while the sum is 22.

The square root of 30151156 is about 5491.0068293529. The cubic root of 30151156 is about 311.2442397175.

Adding to 30151156 its reverse (65115103), we get a palindrome (95266259).

The spelling of 30151156 in words is "thirty million, one hundred fifty-one thousand, one hundred fifty-six".

Divisors: 1 2 4 7 14 28 1076827 2153654 4307308 7537789 15075578 30151156