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1015402130 = 25101540213
BaseRepresentation
bin111100100001011…
…100111010010010
32121202122202212022
4330201130322102
54034420332010
6244431331442
734106530031
oct7441347222
92552582768
101015402130
11481193716
12244080b82
131324a0882
1498bda718
155e224d55
hex3c85ce92

1015402130 has 8 divisors (see below), whose sum is σ = 1827723852. Its totient is φ = 406160848.

The previous prime is 1015402109. The next prime is 1015402139. The reversal of 1015402130 is 312045101.

1015402130 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 2 ways, for example, as 973502401 + 41899729 = 31201^2 + 6473^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×10154021303 (a number of 28 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1015402099 and 1015402108.

It is not an unprimeable number, because it can be changed into a prime (1015402139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50770097 + ... + 50770116.

Almost surely, 21015402130 is an apocalyptic number.

1015402130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1015402130 is a deficient number, since it is larger than the sum of its proper divisors (812321722).

1015402130 is a wasteful number, since it uses less digits than its factorization.

1015402130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101540220.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 1015402130 is about 31865.3750958623. The cubic root of 1015402130 is about 1005.1079081843.

Adding to 1015402130 its reverse (312045101), we get a palindrome (1327447231).

The spelling of 1015402130 in words is "one billion, fifteen million, four hundred two thousand, one hundred thirty".

Divisors: 1 2 5 10 101540213 203080426 507701065 1015402130