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69917049420 = 22351165284157
BaseRepresentation
bin100000100011101100…
…0011000001001001100
320200110122021010001220
41001013120120021030
52121142231040140
652041445003340
75023416054141
oct1010730301114
9220418233056
1069917049420
1127719396079
12116730b3550
1367931c327a
1435539c23c8
151c431c7bd0
hex104761824c

69917049420 has 24 divisors (see below), whose sum is σ = 195767738544. Its totient is φ = 18644546496.

The previous prime is 69917049413. The next prime is 69917049439. The reversal of 69917049420 is 2494071996.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 582642019 + ... + 582642138.

It is an arithmetic number, because the mean of its divisors is an integer number (8156989106).

Almost surely, 269917049420 is an apocalyptic number.

69917049420 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

69917049420 is an abundant number, since it is smaller than the sum of its proper divisors (125850689124).

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

69917049420 is a wasteful number, since it uses less digits than its factorization.

69917049420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1165284169 (or 1165284167 counting only the distinct ones).

The product of its (nonzero) digits is 979776, while the sum is 51.

The spelling of 69917049420 in words is "sixty-nine billion, nine hundred seventeen million, forty-nine thousand, four hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 1165284157 2330568314 3495852471 4661136628 5826420785 6991704942 11652841570 13983409884 17479262355 23305683140 34958524710 69917049420