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30150188 = 2219396713
BaseRepresentation
bin111001100000…
…0111000101100
32002201210021122
41303000320230
530204301223
62554120112
7514162265
oct163007054
962653248
1030150188
1116023312
12a120038
136328463
14400b96c
1529a85c8
hex1cc0e2c

30150188 has 12 divisors (see below), whose sum is σ = 55539960. Its totient is φ = 14281632.

The previous prime is 30150179. The next prime is 30150191. The reversal of 30150188 is 88105103.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 198281 + ... + 198432.

It is an arithmetic number, because the mean of its divisors is an integer number (4628330).

Almost surely, 230150188 is an apocalyptic number.

30150188 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

30150188 is a deficient number, since it is larger than the sum of its proper divisors (25389772).

30150188 is a wasteful number, since it uses less digits than its factorization.

30150188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 396736 (or 396734 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 26.

The square root of 30150188 is about 5490.9186845190. The cubic root of 30150188 is about 311.2409088596.

The spelling of 30150188 in words is "thirty million, one hundred fifty thousand, one hundred eighty-eight".

Divisors: 1 2 4 19 38 76 396713 793426 1586852 7537547 15075094 30150188