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130220310212 = 2232555077553
BaseRepresentation
bin111100101000110111…
…1000011111011000100
3110110010021111011102022
41321101233003323010
54113142344411322
6135453345102312
712256660242116
oct1712157037304
9413107434368
10130220310212
1150253a74493
12212a2627998
13c3837204c5
1464348573b6
1535c2380942
hex1e51bc3ec4

130220310212 has 6 divisors (see below), whose sum is σ = 227885542878. Its totient is φ = 65110155104.

The previous prime is 130220310197. The next prime is 130220310221. The reversal of 130220310212 is 212013022031.

It can be written as a sum of positive squares in only one way, i.e., 80942526016 + 49277784196 = 284504^2 + 221986^2 .

It is a super-2 number, since 2×1302203102122 (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16277538773 + ... + 16277538780.

It is an arithmetic number, because the mean of its divisors is an integer number (37980923813).

Almost surely, 2130220310212 is an apocalyptic number.

It is an amenable number.

130220310212 is a deficient number, since it is larger than the sum of its proper divisors (97665232666).

130220310212 is a wasteful number, since it uses less digits than its factorization.

130220310212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32555077557 (or 32555077555 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 130220310212 its reverse (212013022031), we get a palindrome (342233332243).

The spelling of 130220310212 in words is "one hundred thirty billion, two hundred twenty million, three hundred ten thousand, two hundred twelve".

Divisors: 1 2 4 32555077553 65110155106 130220310212