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30423200 = 2552172237
BaseRepresentation
bin111010000001…
…1100010100000
32010020122210012
41310003202200
530242020300
63004024052
7516410243
oct164034240
963218705
1030423200
111619a445
12a232028
1363c27c2
14407d25a
152a0e435
hex1d038a0

30423200 has 72 divisors (see below), whose sum is σ = 78674652. Its totient is φ = 11448320.

The previous prime is 30423191. The next prime is 30423229. The reversal of 30423200 is 232403.

It can be written as a sum of positive squares in 6 ways, for example, as 20106256 + 10316944 = 4484^2 + 3212^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12482 + ... + 14718.

Almost surely, 230423200 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 30423200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39337326).

30423200 is an abundant number, since it is smaller than the sum of its proper divisors (48251452).

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

30423200 is a wasteful number, since it uses less digits than its factorization.

30423200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2274 (or 2261 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 14.

The square root of 30423200 is about 5515.7229807161. The cubic root of 30423200 is about 312.1775233426.

Adding to 30423200 its reverse (232403), we get a palindrome (30655603).

It can be divided in two parts, 3042 and 3200, that multiplied together give a square (9734400 = 31202).

The spelling of 30423200 in words is "thirty million, four hundred twenty-three thousand, two hundred".

Divisors: 1 2 4 5 8 10 16 17 20 25 32 34 40 50 68 80 85 100 136 160 170 200 272 340 400 425 544 680 800 850 1360 1700 2237 2720 3400 4474 6800 8948 11185 13600 17896 22370 35792 38029 44740 55925 71584 76058 89480 111850 152116 178960 190145 223700 304232 357920 380290 447400 608464 760580 894800 950725 1216928 1521160 1789600 1901450 3042320 3802900 6084640 7605800 15211600 30423200