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30102200 = 2352413671
BaseRepresentation
bin111001011010…
…1001010111000
32002122100110022
41302311022320
530201232300
62553110012
7513602342
oct162651270
962570408
1030102200
1115aa0257
12a0b8308
13630c66b
143dd8292
152999285
hex1cb52b8

30102200 has 48 divisors (see below), whose sum is σ = 71714160. Its totient is φ = 11744000.

The previous prime is 30102199. The next prime is 30102211. The reversal of 30102200 is 220103.

It is a super-2 number, since 2×301022002 = 1812284889680000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (8).

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 6365 + ... + 10035.

It is an arithmetic number, because the mean of its divisors is an integer number (1494045).

Almost surely, 230102200 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30102200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35857080).

30102200 is an abundant number, since it is smaller than the sum of its proper divisors (41611960).

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

30102200 is a wasteful number, since it uses less digits than its factorization.

30102200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3728 (or 3719 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 8.

The square root of 30102200 is about 5486.5471837942. The cubic root of 30102200 is about 311.0756941920.

Adding to 30102200 its reverse (220103), we get a palindrome (30322303).

The spelling of 30102200 in words is "thirty million, one hundred two thousand, two hundred".

Divisors: 1 2 4 5 8 10 20 25 40 41 50 82 100 164 200 205 328 410 820 1025 1640 2050 3671 4100 7342 8200 14684 18355 29368 36710 73420 91775 146840 150511 183550 301022 367100 602044 734200 752555 1204088 1505110 3010220 3762775 6020440 7525550 15051100 30102200