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16955146261 = 194320752933
BaseRepresentation
bin11111100101001101…
…10000000000010101
31121202122002200011001
433302212300000111
5234211004140021
611442235343301
71140110236204
oct176246600025
947678080131
1016955146261
117210813379
1233522b1b31
1317a291a531
14b6bb6523b
156937b7091
hex3f29b0015

16955146261 has 8 divisors (see below), whose sum is σ = 18262581920. Its totient is φ = 15689216592.

The previous prime is 16955146259. The next prime is 16955146291. The reversal of 16955146261 is 16264155961.

It is a happy number.

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 16955146261 - 21 = 16955146259 is a prime.

It is a super-3 number, since 3×169551462613 (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16955146211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10375650 + ... + 10377283.

It is an arithmetic number, because the mean of its divisors is an integer number (2282822740).

Almost surely, 216955146261 is an apocalyptic number.

It is an amenable number.

16955146261 is a deficient number, since it is larger than the sum of its proper divisors (1307435659).

16955146261 is a wasteful number, since it uses less digits than its factorization.

16955146261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20752995.

The product of its digits is 388800, while the sum is 46.

It can be divided in two parts, 16955 and 146261, that added together give a square (163216 = 4042).

The spelling of 16955146261 in words is "sixteen billion, nine hundred fifty-five million, one hundred forty-six thousand, two hundred sixty-one".

Divisors: 1 19 43 817 20752933 394305727 892376119 16955146261