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2142030220 = 2251110196401
BaseRepresentation
bin111111110101100…
…1100100110001100
312112021121102001121
41333223030212030
513341324431340
6552315050324
7104036646031
oct17753144614
95467542047
102142030220
119aa136010
124b94409a4
13281a15805
141646ab388
15c80ba94a
hex7facc98c

2142030220 has 48 divisors (see below), whose sum is σ = 4955834016. Its totient is φ = 771200000.

The previous prime is 2142030203. The next prime is 2142030221. The reversal of 2142030220 is 220302412.

It is a junction number, because it is equal to n+sod(n) for n = 2142030194 and 2142030203.

It is not an unprimeable number, because it can be changed into a prime (2142030221) 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, 25981 + ... + 70420.

It is an arithmetic number, because the mean of its divisors is an integer number (103246542).

Almost surely, 22142030220 is an apocalyptic number.

2142030220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2142030220 is an abundant number, since it is smaller than the sum of its proper divisors (2813803796).

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

2142030220 is a wasteful number, since it uses less digits than its factorization.

2142030220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96522 (or 96520 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 2142030220 is about 46282.0723390818. The cubic root of 2142030220 is about 1289.0661309904.

Adding to 2142030220 its reverse (220302412), we get a palindrome (2362332632).

The spelling of 2142030220 in words is "two billion, one hundred forty-two million, thirty thousand, two hundred twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 101 110 202 220 404 505 1010 1111 2020 2222 4444 5555 11110 22220 96401 192802 385604 482005 964010 1060411 1928020 2120822 4241644 5302055 9736501 10604110 19473002 21208220 38946004 48682505 97365010 107101511 194730020 214203022 428406044 535507555 1071015110 2142030220