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11970030 = 2353161211
BaseRepresentation
bin101101101010…
…010111101110
3211112010210110
4231222113232
511031020110
61104320450
7203513022
oct55522756
924463713
1011970030
116836296
124013126
132631477
141838382
1510b6a20
hexb6a5ee

11970030 has 64 divisors (see below), whose sum is σ = 30283776. Its totient is φ = 3024000.

The previous prime is 11970017. The next prime is 11970031. The reversal of 11970030 is 3007911.

It is a junction number, because it is equal to n+sod(n) for n = 11969979 and 11970006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11970031) 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, 56625 + ... + 56835.

It is an arithmetic number, because the mean of its divisors is an integer number (473184).

Almost surely, 211970030 is an apocalyptic number.

11970030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 11970030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15141888).

11970030 is an abundant number, since it is smaller than the sum of its proper divisors (18313746).

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

11970030 is a wasteful number, since it uses less digits than its factorization.

11970030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313.

The product of its (nonzero) digits is 189, while the sum is 21.

The square root of 11970030 is about 3459.7731139484. The cubic root of 11970030 is about 228.7520946985.

Adding to 11970030 its reverse (3007911), we get a palindrome (14977941).

The spelling of 11970030 in words is "eleven million, nine hundred seventy thousand, thirty".

Divisors: 1 2 3 5 6 10 15 30 31 61 62 93 122 155 183 186 211 305 310 366 422 465 610 633 915 930 1055 1266 1830 1891 2110 3165 3782 5673 6330 6541 9455 11346 12871 13082 18910 19623 25742 28365 32705 38613 39246 56730 64355 65410 77226 98115 128710 193065 196230 386130 399001 798002 1197003 1995005 2394006 3990010 5985015 11970030