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30029730 = 2354192389
BaseRepresentation
bin111001010001…
…1011110100010
32002111200001020
41302203132202
530141422410
62551350310
7513151143
oct162433642
962450036
1030029730
1115a50865
12a082396
1362b5693
143db9aca
152982a70
hex1ca37a2

30029730 has 32 divisors (see below), whose sum is σ = 72273600. Its totient is φ = 7985472.

The previous prime is 30029719. The next prime is 30029737. The reversal of 30029730 is 3792003.

It is a self number, because there is not a number n which added to its sum of digits gives 30029730.

It is not an unprimeable number, because it can be changed into a prime (30029737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11376 + ... + 13764.

It is an arithmetic number, because the mean of its divisors is an integer number (2258550).

Almost surely, 230029730 is an apocalyptic number.

30029730 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

30029730 is an abundant number, since it is smaller than the sum of its proper divisors (42243870).

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

30029730 is a wasteful number, since it uses less digits than its factorization.

30029730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2818.

The product of its (nonzero) digits is 1134, while the sum is 24.

The square root of 30029730 is about 5479.9388682722. The cubic root of 30029730 is about 310.8258589550.

The spelling of 30029730 in words is "thirty million, twenty-nine thousand, seven hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 419 838 1257 2095 2389 2514 4190 4778 6285 7167 11945 12570 14334 23890 35835 71670 1000991 2001982 3002973 5004955 6005946 10009910 15014865 30029730