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30202310220 = 2235810162137
BaseRepresentation
bin11100001000001100…
…101010111001001100
32212221211222022211020
4130020030222321030
5443323242411340
621512540154140
72116304254365
oct341014527114
985854868736
1030202310220
1111899464765
125a2a838950
132b0427aaa4
14166726cb6c
15bbb78c9d0
hex70832ae4c

30202310220 has 48 divisors (see below), whose sum is σ = 84578268768. Its totient is φ = 8052825600.

The previous prime is 30202310213. The next prime is 30202310227. The reversal of 30202310220 is 2201320203.

It is an interprime number because it is at equal distance from previous prime (30202310213) and next prime (30202310227).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 30202310220.

It is not an unprimeable number, because it can be changed into a prime (30202310227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 454992 + ... + 517128.

It is an arithmetic number, because the mean of its divisors is an integer number (1762047266).

Almost surely, 230202310220 is an apocalyptic number.

30202310220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30202310220 is an abundant number, since it is smaller than the sum of its proper divisors (54375958548).

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

30202310220 is a wasteful number, since it uses less digits than its factorization.

30202310220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70250 (or 70248 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

Adding to 30202310220 its reverse (2201320203), we get a palindrome (32403630423).

The spelling of 30202310220 in words is "thirty billion, two hundred two million, three hundred ten thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 8101 16202 24303 32404 40505 48606 62137 81010 97212 121515 124274 162020 186411 243030 248548 310685 372822 486060 621370 745644 932055 1242740 1864110 3728220 503371837 1006743674 1510115511 2013487348 2516859185 3020231022 5033718370 6040462044 7550577555 10067436740 15101155110 30202310220