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30113670 = 23519232297
BaseRepresentation
bin111001011011…
…1111110000110
32002122221012010
41302313332012
530202114140
62553235050
7513650646
oct162677606
962587163
1030113670
1115aa8934
12a102a86
136314952
143ddc526
15299c880
hex1cb7f86

30113670 has 64 divisors (see below), whose sum is σ = 79418880. Its totient is φ = 7273728.

The previous prime is 30113669. The next prime is 30113711. The reversal of 30113670 is 7631103.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11962 + ... + 14258.

It is an arithmetic number, because the mean of its divisors is an integer number (1240920).

Almost surely, 230113670 is an apocalyptic number.

30113670 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 30113670, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39709440).

30113670 is an abundant number, since it is smaller than the sum of its proper divisors (49305210).

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

30113670 is a wasteful number, since it uses less digits than its factorization.

30113670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2349.

The product of its (nonzero) digits is 378, while the sum is 21.

The square root of 30113670 is about 5487.5923682431. The cubic root of 30113670 is about 311.1151994455.

Adding to 30113670 its reverse (7631103), we get a palindrome (37744773).

The spelling of 30113670 in words is "thirty million, one hundred thirteen thousand, six hundred seventy".

Divisors: 1 2 3 5 6 10 15 19 23 30 38 46 57 69 95 114 115 138 190 230 285 345 437 570 690 874 1311 2185 2297 2622 4370 4594 6555 6891 11485 13110 13782 22970 34455 43643 52831 68910 87286 105662 130929 158493 218215 261858 264155 316986 436430 528310 654645 792465 1003789 1309290 1584930 2007578 3011367 5018945 6022734 10037890 15056835 30113670