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30022043420 = 2254057370003
BaseRepresentation
bin11011111101011101…
…000000011100011100
32212111021202211021002
4123331131000130130
5442441120342140
621443020325432
72111655105245
oct337535003434
985437684232
1030022043420
111180672a636
12599a3a3878
132aa5b12645
14164b345ccc
15baaa30415
hex6fd74071c

30022043420 has 24 divisors (see below), whose sum is σ = 63062001744. Its totient is φ = 12005824896.

The previous prime is 30022043417. The next prime is 30022043453. The reversal of 30022043420 is 2434022003.

It is a super-2 number, since 2×300220434202 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 30022043392 and 30022043401.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103862 + ... + 266141.

It is an arithmetic number, because the mean of its divisors is an integer number (2627583406).

Almost surely, 230022043420 is an apocalyptic number.

It is an amenable number.

30022043420 is an abundant number, since it is smaller than the sum of its proper divisors (33039958324).

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

30022043420 is a wasteful number, since it uses less digits than its factorization.

30022043420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374069 (or 374067 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 20.

Adding to 30022043420 its reverse (2434022003), we get a palindrome (32456065423).

The spelling of 30022043420 in words is "thirty billion, twenty-two million, forty-three thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 4057 8114 16228 20285 40570 81140 370003 740006 1480012 1850015 3700030 7400060 1501102171 3002204342 6004408684 7505510855 15011021710 30022043420