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105147932947 = 791677969979
BaseRepresentation
bin110000111101101001…
…1100010000100010011
3101001101221101102122221
41201323103202010103
53210320332323242
6120145421041511
710411443453241
oct1417323420423
9331357342587
10105147932947
11406582a3342
12184659b6297
139bb91c5405
145136a2d791
152b06163167
hex187b4e2113

105147932947 has 8 divisors (see below), whose sum is σ = 107116531200. Its totient is φ = 103195275144.

The previous prime is 105147932797. The next prime is 105147932951. The reversal of 105147932947 is 749239741501.

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

It is a cyclic number.

It is not a de Polignac number, because 105147932947 - 219 = 105147408659 is a prime.

It is a super-2 number, since 2×1051479329472 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 105147932894 and 105147932903.

It is not an unprimeable number, because it can be changed into a prime (105147932447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3971797 + ... + 3998182.

It is an arithmetic number, because the mean of its divisors is an integer number (13389566400).

Almost surely, 2105147932947 is an apocalyptic number.

105147932947 is a deficient number, since it is larger than the sum of its proper divisors (1968598253).

105147932947 is an equidigital number, since it uses as much as digits as its factorization.

105147932947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7970225.

The product of its (nonzero) digits is 1905120, while the sum is 52.

The spelling of 105147932947 in words is "one hundred five billion, one hundred forty-seven million, nine hundred thirty-two thousand, nine hundred forty-seven".

Divisors: 1 79 167 13193 7969979 629628341 1330986493 105147932947