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2055429940 = 225102771497
BaseRepresentation
bin111101010000011…
…0101111100110100
312022020122122210211
41322200311330310
513202142224230
6535542555204
7101635603054
oct17240657464
95266578724
102055429940
11965266a33
12494438b04
13269ab4145
14156da7564
15c06b142a
hex7a835f34

2055429940 has 12 divisors (see below), whose sum is σ = 4316402916. Its totient is φ = 822171968.

The previous prime is 2055429913. The next prime is 2055429977. The reversal of 2055429940 is 499245502.

It can be written as a sum of positive squares in 2 ways, for example, as 453349264 + 1602080676 = 21292^2 + 40026^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2055429893 and 2055429902.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 51385729 + ... + 51385768.

It is an arithmetic number, because the mean of its divisors is an integer number (359700243).

Almost surely, 22055429940 is an apocalyptic number.

2055429940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2055429940 is an abundant number, since it is smaller than the sum of its proper divisors (2260972976).

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

2055429940 is a wasteful number, since it uses less digits than its factorization.

2055429940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102771506 (or 102771504 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 40.

The square root of 2055429940 is about 45336.8496920551. The cubic root of 2055429940 is about 1271.4547036068.

The spelling of 2055429940 in words is "two billion, fifty-five million, four hundred twenty-nine thousand, nine hundred forty".

Divisors: 1 2 4 5 10 20 102771497 205542994 411085988 513857485 1027714970 2055429940