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30089936 = 242964849
BaseRepresentation
bin111001011001…
…0001011010000
32002121201122002
41302302023100
530200334221
62552533132
7513521522
oct162621320
962551562
1030089936
1115a92018
12a0b11a8
136306bc6
143dd3a12
15299580b
hex1cb22d0

30089936 has 20 divisors (see below), whose sum is σ = 60310500. Its totient is φ = 14525952.

The previous prime is 30089903. The next prime is 30089959. The reversal of 30089936 is 63998003.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 14440000 + 15649936 = 3800^2 + 3956^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 30089936.

It is a congruent number.

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, 31961 + ... + 32888.

It is an arithmetic number, because the mean of its divisors is an integer number (3015525).

Almost surely, 230089936 is an apocalyptic number.

It is an amenable number.

30089936 is an abundant number, since it is smaller than the sum of its proper divisors (30220564).

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

30089936 is a wasteful number, since it uses less digits than its factorization.

30089936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64886 (or 64880 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 38.

The square root of 30089936 is about 5485.4294271278. The cubic root of 30089936 is about 311.0334431215.

The spelling of 30089936 in words is "thirty million, eighty-nine thousand, nine hundred thirty-six".

Divisors: 1 2 4 8 16 29 58 116 232 464 64849 129698 259396 518792 1037584 1880621 3761242 7522484 15044968 30089936