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130434442012 = 22721739145991
BaseRepresentation
bin111100101111001111…
…1111010001100011100
3110110200012102012000201
41321132133322030130
54114112204121022
6135530514433244
712265200315100
oct1713637721434
9413605365021
10130434442012
1150353929916
1221342292824
13c3b8bb4c04
146455077900
1535d607c127
hex1e5e7fa31c

130434442012 has 36 divisors (see below), whose sum is σ = 281146514544. Its totient is φ = 52612210560.

The previous prime is 130434442009. The next prime is 130434442043. The reversal of 130434442012 is 210244434031.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19569664 + ... + 19576327.

It is an arithmetic number, because the mean of its divisors is an integer number (7809625404).

Almost surely, 2130434442012 is an apocalyptic number.

It is an amenable number.

130434442012 is an abundant number, since it is smaller than the sum of its proper divisors (150712072532).

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

130434442012 is a wasteful number, since it uses less digits than its factorization.

130434442012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39146026 (or 39146017 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 130434442012 its reverse (210244434031), we get a palindrome (340678876043).

The spelling of 130434442012 in words is "one hundred thirty billion, four hundred thirty-four million, four hundred forty-two thousand, twelve".

Divisors: 1 2 4 7 14 17 28 34 49 68 98 119 196 238 476 833 1666 3332 39145991 78291982 156583964 274021937 548043874 665481847 1096087748 1330963694 1918153559 2661927388 3836307118 4658372929 7672614236 9316745858 18633491716 32608610503 65217221006 130434442012