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30061828 = 2223674877
BaseRepresentation
bin111001010101…
…1010100000100
32002120022002001
41302223110010
530143434303
62552155044
7513343546
oct162532404
962508061
1030061828
1115a72995
12a098a84
1362c7184
143dc7696
15298c31d
hex1cab504

30061828 has 24 divisors (see below), whose sum is σ = 55726272. Its totient is φ = 14159904.

The previous prime is 30061817. The next prime is 30061841. The reversal of 30061828 is 82816003.

It is a junction number, because it is equal to n+sod(n) for n = 30061796 and 30061805.

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 7 ways as a sum of consecutive naturals, for example, 3726 + ... + 8602.

It is an arithmetic number, because the mean of its divisors is an integer number (2321928).

Almost surely, 230061828 is an apocalyptic number.

It is an amenable number.

30061828 is a deficient number, since it is larger than the sum of its proper divisors (25664444).

30061828 is a wasteful number, since it uses less digits than its factorization.

30061828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4971 (or 4969 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 30061828 is about 5482.8667683977. The cubic root of 30061828 is about 310.9365640890.

It can be divided in two parts, 300 and 61828, that added together give a triangular number (62128 = T352).

The spelling of 30061828 in words is "thirty million, sixty-one thousand, eight hundred twenty-eight".

Divisors: 1 2 4 23 46 67 92 134 268 1541 3082 4877 6164 9754 19508 112171 224342 326759 448684 653518 1307036 7515457 15030914 30061828