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30302237380 = 22531316133001
BaseRepresentation
bin11100001110001001…
…110111001011000100
32220012211000011010011
4130032021313023010
5444024333044010
621530510040004
72121626524252
oct341611671304
986184004104
1030302237380
111193a906498
125a581a9004
132b1bb9739c
1416766415d2
15bc542aa8a
hex70e2772c4

30302237380 has 48 divisors (see below), whose sum is σ = 63898866864. Its totient is φ = 12070656000.

The previous prime is 30302237369. The next prime is 30302237387. The reversal of 30302237380 is 8373220303.

It can be written as a sum of positive squares in 8 ways, for example, as 3400989124 + 26901248256 = 58318^2 + 164016^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (30302237387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10095880 + ... + 10098880.

It is an arithmetic number, because the mean of its divisors is an integer number (1331226393).

Almost surely, 230302237380 is an apocalyptic number.

It is an amenable number.

30302237380 is an abundant number, since it is smaller than the sum of its proper divisors (33596629484).

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

30302237380 is a wasteful number, since it uses less digits than its factorization.

30302237380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4936 (or 4934 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 31.

Adding to 30302237380 its reverse (8373220303), we get a palindrome (38675457683).

The spelling of 30302237380 in words is "thirty billion, three hundred two million, two hundred thirty-seven thousand, three hundred eighty".

Divisors: 1 2 4 5 10 20 313 626 1252 1565 1613 3001 3130 3226 6002 6260 6452 8065 12004 15005 16130 30010 32260 60020 504869 939313 1009738 1878626 2019476 2524345 3757252 4696565 4840613 5048690 9393130 9681226 10097380 18786260 19362452 24203065 48406130 96812260 1515111869 3030223738 6060447476 7575559345 15151118690 30302237380