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30031220200 = 2352374058273
BaseRepresentation
bin11011111110000000…
…000000110111101000
32212111221001001102211
4123332000000313220
5443000443021300
621443545134504
72112126105562
oct337600006750
985457031384
1030031220200
1111810928253
1259a148a434
132aa79a65a7
14164c654332
15bab7444ba
hex6fe000de8

30031220200 has 48 divisors (see below), whose sum is σ = 71709701580. Its totient is φ = 11687823360.

The previous prime is 30031220179. The next prime is 30031220231. The reversal of 30031220200 is 202213003.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 21168504036 + 8862716164 = 145494^2 + 94142^2 .

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, 2021737 + ... + 2036536.

Almost surely, 230031220200 is an apocalyptic number.

It is an amenable number.

30031220200 is an abundant number, since it is smaller than the sum of its proper divisors (41678481380).

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

30031220200 is a wasteful number, since it uses less digits than its factorization.

30031220200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4058326 (or 4058317 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 13.

Adding to 30031220200 its reverse (202213003), we get a palindrome (30233433203).

The spelling of 30031220200 in words is "thirty billion, thirty-one million, two hundred twenty thousand, two hundred".

Divisors: 1 2 4 5 8 10 20 25 37 40 50 74 100 148 185 200 296 370 740 925 1480 1850 3700 7400 4058273 8116546 16233092 20291365 32466184 40582730 81165460 101456825 150156101 162330920 202913650 300312202 405827300 600624404 750780505 811654600 1201248808 1501561010 3003122020 3753902525 6006244040 7507805050 15015610100 30031220200