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30101052 = 22341193317
BaseRepresentation
bin111001011010…
…0111000111100
32002122021212210
41302310320330
530201213202
62553100420
7513566112
oct162647074
962567783
1030101052
1115a9a403
12a0b7710
13630bc97
143dd7ab2
152998c6c
hex1cb4e3c

30101052 has 48 divisors (see below), whose sum is σ = 72549792. Its totient is φ = 9707520.

The previous prime is 30101051. The next prime is 30101069. The reversal of 30101052 is 25010103.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30101051) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94798 + ... + 95114.

It is an arithmetic number, because the mean of its divisors is an integer number (1511454).

Almost surely, 230101052 is an apocalyptic number.

It is an amenable number.

30101052 is an abundant number, since it is smaller than the sum of its proper divisors (42448740).

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

30101052 is a wasteful number, since it uses less digits than its factorization.

30101052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 558 (or 556 counting only the distinct ones).

The product of its (nonzero) digits is 30, while the sum is 12.

The square root of 30101052 is about 5486.4425632645. The cubic root of 30101052 is about 311.0717396700.

Adding to 30101052 its reverse (25010103), we get a palindrome (55111155).

The spelling of 30101052 in words is "thirty million, one hundred one thousand, fifty-two".

Divisors: 1 2 3 4 6 12 41 82 123 164 193 246 317 386 492 579 634 772 951 1158 1268 1902 2316 3804 7913 12997 15826 23739 25994 31652 38991 47478 51988 61181 77982 94956 122362 155964 183543 244724 367086 734172 2508421 5016842 7525263 10033684 15050526 30101052