Search a number
-
+
30201012 = 223610357
BaseRepresentation
bin111001100110…
…1010010110100
32002211101000000
41303031102310
530212413022
62555151300
7514463412
oct163152264
962741000
1030201012
1116058516
12a145530
13634562a
1440222b2
1529b86ac
hex1ccd4b4

30201012 has 42 divisors (see below), whose sum is σ = 79249058. Its totient is φ = 10066032.

The previous prime is 30200999. The next prime is 30201019. The reversal of 30201012 is 21010203.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 25765776 + 4435236 = 5076^2 + 2106^2 .

It is a super-2 number, since 2×302010122 = 1824202251648288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 30200985 and 30201003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30201019) 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 13 ways as a sum of consecutive naturals, for example, 2263 + ... + 8094.

Almost surely, 230201012 is an apocalyptic number.

It is an amenable number.

30201012 is an abundant number, since it is smaller than the sum of its proper divisors (49048046).

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

30201012 is a wasteful number, since it uses less digits than its factorization.

30201012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10379 (or 10362 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 30201012 is about 5495.5447409697. The cubic root of 30201012 is about 311.4156963587.

Adding to 30201012 its reverse (21010203), we get a palindrome (51211215).

The spelling of 30201012 in words is "thirty million, two hundred one thousand, twelve".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 81 108 162 243 324 486 729 972 1458 2916 10357 20714 31071 41428 62142 93213 124284 186426 279639 372852 559278 838917 1118556 1677834 2516751 3355668 5033502 7550253 10067004 15100506 30201012