Search a number
-
+
129032141420 = 22571370896781
BaseRepresentation
bin111100000101011101…
…0100011101001101100
3110100001110201221020202
41320022322203221230
54103224212011140
6135135422333032
712215352051140
oct1701272435154
9410043657222
10129032141420
114a7a4309706
122101072a178
13c22450c250
146360b27220
153552dd0915
hex1e0aea3a6c

129032141420 has 48 divisors (see below), whose sum is σ = 333498462528. Its totient is φ = 40836545280.

The previous prime is 129032141389. The next prime is 129032141467. The reversal of 129032141420 is 24141230921.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35446571 + ... + 35450210.

It is an arithmetic number, because the mean of its divisors is an integer number (6947884636).

Almost surely, 2129032141420 is an apocalyptic number.

129032141420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

129032141420 is an abundant number, since it is smaller than the sum of its proper divisors (204466321108).

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

129032141420 is a wasteful number, since it uses less digits than its factorization.

129032141420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70896810 (or 70896808 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 29.

The spelling of 129032141420 in words is "one hundred twenty-nine billion, thirty-two million, one hundred forty-one thousand, four hundred twenty".

Divisors: 1 2 4 5 7 10 13 14 20 26 28 35 52 65 70 91 130 140 182 260 364 455 910 1820 70896781 141793562 283587124 354483905 496277467 708967810 921658153 992554934 1417935620 1843316306 1985109868 2481387335 3686632612 4608290765 4962774670 6451607071 9216581530 9925549340 12903214142 18433163060 25806428284 32258035355 64516070710 129032141420