Search a number
-
+
30700269 = 333779389
BaseRepresentation
bin111010100011…
…1001011101101
32010202201212000
41311013023231
530324402034
63014002513
7521643105
oct165071355
963681760
1030700269
1116369626
12a346439
13648b952
144112205
152a66599
hex1d472ed

30700269 has 32 divisors (see below), whose sum is σ = 47424000. Its totient is φ = 19611072.

The previous prime is 30700231. The next prime is 30700279. The reversal of 30700269 is 96200703.

It is not a de Polignac number, because 30700269 - 211 = 30698221 is a prime.

It is a super-2 number, since 2×307002692 = 1885013033344722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30700279) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 78727 + ... + 79115.

It is an arithmetic number, because the mean of its divisors is an integer number (1482000).

Almost surely, 230700269 is an apocalyptic number.

It is an amenable number.

30700269 is a deficient number, since it is larger than the sum of its proper divisors (16723731).

30700269 is a wasteful number, since it uses less digits than its factorization.

30700269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 514 (or 508 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 27.

The square root of 30700269 is about 5540.7823454815. The cubic root of 30700269 is about 313.1223446295.

The spelling of 30700269 in words is "thirty million, seven hundred thousand, two hundred sixty-nine".

Divisors: 1 3 9 27 37 79 111 237 333 389 711 999 1167 2133 2923 3501 8769 10503 14393 26307 30731 43179 78921 92193 129537 276579 388611 829737 1137047 3411141 10233423 30700269