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1042660830 = 235179912063
BaseRepresentation
bin111110001001011…
…011110111011110
32200122221122202210
4332021123313132
54113410121310
6251243501250
734560320331
oct7611336736
92618848683
101042660830
11495611572
12251227826
13138025b93
149c694618
156180b820
hex3e25bdde

1042660830 has 64 divisors (see below), whose sum is σ = 2653544448. Its totient is φ = 261296640.

The previous prime is 1042660819. The next prime is 1042660849. The reversal of 1042660830 is 380662401.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 504379 + ... + 506441.

It is an arithmetic number, because the mean of its divisors is an integer number (41461632).

Almost surely, 21042660830 is an apocalyptic number.

1042660830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1042660830, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1326772224).

1042660830 is an abundant number, since it is smaller than the sum of its proper divisors (1610883618).

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

1042660830 is a wasteful number, since it uses less digits than its factorization.

1042660830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3081.

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 1042660830 is about 32290.2590574929. The cubic root of 1042660830 is about 1014.0227208397.

The spelling of 1042660830 in words is "one billion, forty-two million, six hundred sixty thousand, eight hundred thirty".

Divisors: 1 2 3 5 6 10 15 17 30 34 51 85 102 170 255 510 991 1982 2063 2973 4126 4955 5946 6189 9910 10315 12378 14865 16847 20630 29730 30945 33694 35071 50541 61890 70142 84235 101082 105213 168470 175355 210426 252705 350710 505410 526065 1052130 2044433 4088866 6133299 10222165 12266598 20444330 30666495 34755361 61332990 69510722 104266083 173776805 208532166 347553610 521330415 1042660830