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1030439886 = 23753462911
BaseRepresentation
bin111101011010110…
…100001111001110
32122210221202210020
4331122310033032
54102243034021
6250125523010
734351410630
oct7532641716
92583852706
101030439886
11489724813
12249113466
13135637458
149abd2a50
15606e57c6
hex3d6b43ce

1030439886 has 32 divisors (see below), whose sum is σ = 2399735808. Its totient is φ = 288855840.

The previous prime is 1030439869. The next prime is 1030439903. The reversal of 1030439886 is 6889340301.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1030439869) and next prime (1030439903).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 229230 + ... + 233681.

It is an arithmetic number, because the mean of its divisors is an integer number (74991744).

Almost surely, 21030439886 is an apocalyptic number.

1030439886 is an abundant number, since it is smaller than the sum of its proper divisors (1369295922).

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

1030439886 is a wasteful number, since it uses less digits than its factorization.

1030439886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 462976.

The product of its (nonzero) digits is 124416, while the sum is 42.

The square root of 1030439886 is about 32100.4655106433. The cubic root of 1030439886 is about 1010.0453810933.

The spelling of 1030439886 in words is "one billion, thirty million, four hundred thirty-nine thousand, eight hundred eighty-six".

Divisors: 1 2 3 6 7 14 21 42 53 106 159 318 371 742 1113 2226 462911 925822 1388733 2777466 3240377 6480754 9721131 19442262 24534283 49068566 73602849 147205698 171739981 343479962 515219943 1030439886