Search a number
-
+
1061428888 = 2313113181499
BaseRepresentation
bin111111010001000…
…001111010011000
32201222021011201001
4333101001322120
54133211211023
6253154034344
735205665602
oct7721017230
92658234631
101061428888
114a5170263
122575789b4
1313bb97640
14a0d7c172
15632b76ad
hex3f441e98

1061428888 has 64 divisors (see below), whose sum is σ = 2178540000. Its totient is φ = 481904640.

The previous prime is 1061428883. The next prime is 1061428891. The reversal of 1061428888 is 8888241601.

1061428888 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×10614288882 = 2253262568561833088, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1061428883) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2126863 + ... + 2127361.

Almost surely, 21061428888 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1061428888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1089270000).

1061428888 is an abundant number, since it is smaller than the sum of its proper divisors (1117111112).

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

1061428888 is a wasteful number, since it uses less digits than its factorization.

1061428888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 812 (or 808 counting only the distinct ones).

The product of its (nonzero) digits is 196608, while the sum is 46.

The square root of 1061428888 is about 32579.5777750418. The cubic root of 1061428888 is about 1020.0707653069.

The spelling of 1061428888 in words is "one billion, sixty-one million, four hundred twenty-eight thousand, eight hundred eighty-eight".

Divisors: 1 2 4 8 13 26 52 104 113 181 226 362 452 499 724 904 998 1448 1469 1996 2353 2938 3992 4706 5876 6487 9412 11752 12974 18824 20453 25948 40906 51896 56387 81812 90319 112774 163624 180638 225548 265889 361276 451096 531778 722552 733031 1063556 1174147 1466062 2127112 2348294 2932124 4696588 5864248 9393176 10206047 20412094 40824188 81648376 132678611 265357222 530714444 1061428888