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129020308310 = 2512902030831
BaseRepresentation
bin111100000101000110…
…1011010101101010110
3110100000122110202021102
41320022031122231112
54103213144331220
6135134320550102
712215146345235
oct1701215325526
9410018422242
10129020308310
114a798667283
1221008782332
13c221c281ca
14635d326b1c
153551d44775
hex1e0a35ab56

129020308310 has 8 divisors (see below), whose sum is σ = 232236554976. Its totient is φ = 51608123320.

The previous prime is 129020308309. The next prime is 129020308343. The reversal of 129020308310 is 13803020921.

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

It is a super-2 number, since 2×1290203083102 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 6451015406 + ... + 6451015425.

It is an arithmetic number, because the mean of its divisors is an integer number (29029569372).

Almost surely, 2129020308310 is an apocalyptic number.

129020308310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

129020308310 is a deficient number, since it is larger than the sum of its proper divisors (103216246666).

129020308310 is a wasteful number, since it uses less digits than its factorization.

129020308310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12902030838.

The product of its (nonzero) digits is 2592, while the sum is 29.

The spelling of 129020308310 in words is "one hundred twenty-nine billion, twenty million, three hundred eight thousand, three hundred ten".

Divisors: 1 2 5 10 12902030831 25804061662 64510154155 129020308310