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30542200 = 23521317691
BaseRepresentation
bin111010010000…
…0100101111000
32010110201000121
41310200211320
530304322300
63010343024
7520414213
oct164404570
963421017
1030542200
1116270897
12a28aa74
136434a10
1440b077a
152a3481a
hex1d20978

30542200 has 96 divisors (see below), whose sum is σ = 81088560. Its totient is φ = 10598400.

The previous prime is 30542179. The next prime is 30542203. The reversal of 30542200 is 224503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30542203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 43855 + ... + 44545.

Almost surely, 230542200 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 30542200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40544280).

30542200 is an abundant number, since it is smaller than the sum of its proper divisors (50546360).

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

30542200 is a wasteful number, since it uses less digits than its factorization.

30542200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 737 (or 728 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 16.

The square root of 30542200 is about 5526.4997964354. The cubic root of 30542200 is about 312.5840200746.

Adding to 30542200 its reverse (224503), we get a palindrome (30766703).

The spelling of 30542200 in words is "thirty million, five hundred forty-two thousand, two hundred".

Divisors: 1 2 4 5 8 10 13 17 20 25 26 34 40 50 52 65 68 85 100 104 130 136 170 200 221 260 325 340 425 442 520 650 680 691 850 884 1105 1300 1382 1700 1768 2210 2600 2764 3400 3455 4420 5525 5528 6910 8840 8983 11050 11747 13820 17275 17966 22100 23494 27640 34550 35932 44200 44915 46988 58735 69100 71864 89830 93976 117470 138200 152711 179660 224575 234940 293675 305422 359320 449150 469880 587350 610844 763555 898300 1174700 1221688 1527110 1796600 2349400 3054220 3817775 6108440 7635550 15271100 30542200