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1051430020 = 225401131101
BaseRepresentation
bin111110101010111…
…000110010000100
32201021110011211121
4332222320302010
54123131230040
6252155443324
735025002434
oct7652706204
92637404747
101051430020
1149a560a33
12254156544
13139aa6454
149d8d82c4
156248ec4a
hex3eab8c84

1051430020 has 24 divisors (see below), whose sum is σ = 2213526168. Its totient is φ = 419520000.

The previous prime is 1051430011. The next prime is 1051430021. The reversal of 1051430020 is 200341501.

1051430020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 368025856 + 683404164 = 19184^2 + 26142^2 .

It is a super-2 number, since 2×10514300202 = 2211010173914400800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1051429976 and 1051430003.

It is not an unprimeable number, because it can be changed into a prime (1051430021) 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, 57531 + ... + 73570.

It is an arithmetic number, because the mean of its divisors is an integer number (92230257).

Almost surely, 21051430020 is an apocalyptic number.

1051430020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1051430020 is an abundant number, since it is smaller than the sum of its proper divisors (1162096148).

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

1051430020 is a wasteful number, since it uses less digits than its factorization.

1051430020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131511 (or 131509 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 1051430020 is about 32425.7616718559. The cubic root of 1051430020 is about 1016.8575656338.

Adding to 1051430020 its reverse (200341501), we get a palindrome (1251771521).

The spelling of 1051430020 in words is "one billion, fifty-one million, four hundred thirty thousand, twenty".

Divisors: 1 2 4 5 10 20 401 802 1604 2005 4010 8020 131101 262202 524404 655505 1311010 2622020 52571501 105143002 210286004 262857505 525715010 1051430020