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1042231420 = 225431211897
BaseRepresentation
bin111110000111110…
…011000001111100
32200122010211201201
4332013303001330
54113302401140
6251230345244
734553551366
oct7607630174
92618124651
101042231420
1149534898a
1225105b224
13137c055a9
149c5c1d36
156177449a
hex3e1f307c

1042231420 has 24 divisors (see below), whose sum is σ = 2239587504. Its totient is φ = 407197056.

The previous prime is 1042231417. The next prime is 1042231447. The reversal of 1042231420 is 241322401.

It is a zygodrome in base 2.

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 7 ways as a sum of consecutive naturals, for example, 605089 + ... + 606808.

It is an arithmetic number, because the mean of its divisors is an integer number (93316146).

Almost surely, 21042231420 is an apocalyptic number.

1042231420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1042231420 is an abundant number, since it is smaller than the sum of its proper divisors (1197356084).

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

1042231420 is a wasteful number, since it uses less digits than its factorization.

1042231420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1211949 (or 1211947 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 1042231420 is about 32283.6091538725. The cubic root of 1042231420 is about 1013.8834965034.

Adding to 1042231420 its reverse (241322401), we get a palindrome (1283553821).

The spelling of 1042231420 in words is "one billion, forty-two million, two hundred thirty-one thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 43 86 172 215 430 860 1211897 2423794 4847588 6059485 12118970 24237940 52111571 104223142 208446284 260557855 521115710 1042231420