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20212012130 = 2517421282409
BaseRepresentation
bin10010110100101110…
…101101010001100010
31221011121110121012212
4102310232231101202
5312343233342010
613141341322122
71313605161032
oct226456552142
957147417185
1020212012130
118632176962
123b00b66342
131ba15a95bb
14d9a5138c2
157d4699505
hex4b4bad462

20212012130 has 32 divisors (see below), whose sum is σ = 38613354480. Its totient is φ = 7591127040.

The previous prime is 20212012103. The next prime is 20212012157. The reversal of 20212012130 is 3121021202.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20212012103) and next prime (20212012157).

It can be written as a sum of positive squares in 8 ways, for example, as 1357701409 + 18854310721 = 36847^2 + 137311^2 .

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 15 ways as a sum of consecutive naturals, for example, 69635 + ... + 212774.

Almost surely, 220212012130 is an apocalyptic number.

20212012130 is a deficient number, since it is larger than the sum of its proper divisors (18401342350).

20212012130 is a wasteful number, since it uses less digits than its factorization.

20212012130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282854.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 20212012130 its reverse (3121021202), we get a palindrome (23333033332).

The spelling of 20212012130 in words is "twenty billion, two hundred twelve million, twelve thousand, one hundred thirty".

Divisors: 1 2 5 10 17 34 85 170 421 842 2105 4210 7157 14314 35785 71570 282409 564818 1412045 2824090 4800953 9601906 24004765 48009530 118894189 237788378 594470945 1188941890 2021201213 4042402426 10106006065 20212012130