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30260670 = 23511107857
BaseRepresentation
bin111001101101…
…1110110111110
32002221101211120
41303123312332
530221320140
63000331410
7515132346
oct163336676
962841746
1030260670
1116099320
12a173b66
13636682b
144039d26
1529cb1d0
hex1cdbdbe

30260670 has 64 divisors (see below), whose sum is σ = 80061696. Its totient is φ = 7258880.

The previous prime is 30260669. The next prime is 30260693. The reversal of 30260670 is 7606203.

It is a self number, because there is not a number n which added to its sum of digits gives 30260670.

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, 34882 + ... + 35738.

It is an arithmetic number, because the mean of its divisors is an integer number (1250964).

Almost surely, 230260670 is an apocalyptic number.

30260670 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 30260670, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40030848).

30260670 is an abundant number, since it is smaller than the sum of its proper divisors (49801026).

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

30260670 is a wasteful number, since it uses less digits than its factorization.

30260670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 985.

The product of its (nonzero) digits is 1512, while the sum is 24.

The square root of 30260670 is about 5500.9699144787. The cubic root of 30260670 is about 311.6206146350.

Adding to 30260670 its reverse (7606203), we get a palindrome (37866873).

The spelling of 30260670 in words is "thirty million, two hundred sixty thousand, six hundred seventy".

Divisors: 1 2 3 5 6 10 11 15 22 30 33 55 66 107 110 165 214 321 330 535 642 857 1070 1177 1605 1714 2354 2571 3210 3531 4285 5142 5885 7062 8570 9427 11770 12855 17655 18854 25710 28281 35310 47135 56562 91699 94270 141405 183398 275097 282810 458495 550194 916990 1008689 1375485 2017378 2750970 3026067 5043445 6052134 10086890 15130335 30260670