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30141999 = 3219359491
BaseRepresentation
bin111001011111…
…0111000101111
32002201101001100
41302332320233
530204020444
62554014143
7514126356
oct162767057
962641040
1030141999
1116018148
12a117353
136324804
14400899d
1529a5e69
hex1cbee2f

30141999 has 24 divisors (see below), whose sum is σ = 46051200. Its totient is φ = 18945360.

The previous prime is 30141977. The next prime is 30142009. The reversal of 30141999 is 99914103.

It is not a de Polignac number, because 30141999 - 27 = 30141871 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30141299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 61144 + ... + 61634.

It is an arithmetic number, because the mean of its divisors is an integer number (1918800).

Almost surely, 230141999 is an apocalyptic number.

30141999 is a deficient number, since it is larger than the sum of its proper divisors (15909201).

30141999 is a wasteful number, since it uses less digits than its factorization.

30141999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 875 (or 872 counting only the distinct ones).

The product of its (nonzero) digits is 8748, while the sum is 36.

The square root of 30141999 is about 5490.1729480955. The cubic root of 30141999 is about 311.2127279121.

The spelling of 30141999 in words is "thirty million, one hundred forty-one thousand, nine hundred ninety-nine".

Divisors: 1 3 9 19 57 171 359 491 1077 1473 3231 4419 6821 9329 20463 27987 61389 83961 176269 528807 1586421 3349111 10047333 30141999