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2142055030 = 25521411143
BaseRepresentation
bin111111110101101…
…0010101001110110
312112021122200002111
41333223102221312
513341331230110
6552315401234
7104040111253
oct17753225166
95467580074
102142055030
119aa152715
124b945321a
13281a23bab
141646b642a
15c80c2e8a
hex7fad2a76

2142055030 has 16 divisors (see below), whose sum is σ = 3863109024. Its totient is φ = 855175360.

The previous prime is 2142055001. The next prime is 2142055031. The reversal of 2142055030 is 305502412.

It is a junction number, because it is equal to n+sod(n) for n = 2142054992 and 2142055010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2142055031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 200362 + ... + 210781.

It is an arithmetic number, because the mean of its divisors is an integer number (241444314).

Almost surely, 22142055030 is an apocalyptic number.

2142055030 is a deficient number, since it is larger than the sum of its proper divisors (1721053994).

2142055030 is a wasteful number, since it uses less digits than its factorization.

2142055030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411671.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 2142055030 is about 46282.3403686547. The cubic root of 2142055030 is about 1289.0711078277.

Adding to 2142055030 its reverse (305502412), we get a palindrome (2447557442).

The spelling of 2142055030 in words is "two billion, one hundred forty-two million, fifty-five thousand, thirty".

Divisors: 1 2 5 10 521 1042 2605 5210 411143 822286 2055715 4111430 214205503 428411006 1071027515 2142055030