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1930045286 = 213216134351
BaseRepresentation
bin111001100001010…
…0010011101100110
311222111201110101202
41303002202131212
512423042422121
6515303322502
765554054121
oct16302423546
94874643352
101930045286
11900507654
1245a450432
13249b23340
141444893b8
15b469540b
hex730a2766

1930045286 has 16 divisors (see below), whose sum is σ = 3119299008. Its totient is φ = 890352000.

The previous prime is 1930045283. The next prime is 1930045291. The reversal of 1930045286 is 6825400391.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1930045283) 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, 39011 + ... + 73361.

It is an arithmetic number, because the mean of its divisors is an integer number (194956188).

Almost surely, 21930045286 is an apocalyptic number.

1930045286 is a deficient number, since it is larger than the sum of its proper divisors (1189253722).

1930045286 is a wasteful number, since it uses less digits than its factorization.

1930045286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36527.

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 1930045286 is about 43932.2806828874. The cubic root of 1930045286 is about 1245.0568053091.

The spelling of 1930045286 in words is "one billion, nine hundred thirty million, forty-five thousand, two hundred eighty-six".

Divisors: 1 2 13 26 2161 4322 28093 34351 56186 68702 446563 893126 74232511 148465022 965022643 1930045286