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30289853 = 1115717539
BaseRepresentation
bin111001110001…
…0111110111101
32002222212212102
41303202332331
530223233403
63001114445
7515313416
oct163427675
962885772
1030289853
1116109240
12a188a25
136376bb9
14404680d
1529d4b88
hex1ce2fbd

30289853 has 8 divisors (see below), whose sum is σ = 33255840. Its totient is φ = 27359280.

The previous prime is 30289813. The next prime is 30289877. The reversal of 30289853 is 35898203.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30289853 - 26 = 30289789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30289813) 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 7 ways as a sum of consecutive naturals, for example, 7043 + ... + 10496.

It is an arithmetic number, because the mean of its divisors is an integer number (4156980).

Almost surely, 230289853 is an apocalyptic number.

It is an amenable number.

30289853 is a deficient number, since it is larger than the sum of its proper divisors (2965987).

30289853 is a wasteful number, since it uses less digits than its factorization.

30289853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17707.

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 30289853 is about 5503.6218075009. The cubic root of 30289853 is about 311.7207567510.

The spelling of 30289853 in words is "thirty million, two hundred eighty-nine thousand, eight hundred fifty-three".

Divisors: 1 11 157 1727 17539 192929 2753623 30289853