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8928950121 = 3271353205703
BaseRepresentation
bin10000101000011010…
…01111011101101001
3212001021101122220100
420110031033131221
5121241302400441
64034002220013
7434160552360
oct102415173551
925037348810
108928950121
113872183423
121892354609
13ac3b34950
14609bdc7d7
15373d44cb6
hex21434f769

8928950121 has 48 divisors (see below), whose sum is σ = 16173271296. Its totient is φ = 4620889728.

The previous prime is 8928950071. The next prime is 8928950141. The reversal of 8928950121 is 1210598298.

8928950121 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 8928950121 - 214 = 8928933737 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8928950141) 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 47 ways as a sum of consecutive naturals, for example, 59445 + ... + 146258.

It is an arithmetic number, because the mean of its divisors is an integer number (336943152).

Almost surely, 28928950121 is an apocalyptic number.

It is an amenable number.

8928950121 is a deficient number, since it is larger than the sum of its proper divisors (7244321175).

8928950121 is a wasteful number, since it uses less digits than its factorization.

8928950121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205782 (or 205779 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 45.

The square root of 8928950121 is about 94493.1220830384. The cubic root of 8928950121 is about 2074.5956629100.

The spelling of 8928950121 in words is "eight billion, nine hundred twenty-eight million, nine hundred fifty thousand, one hundred twenty-one".

Divisors: 1 3 7 9 13 21 39 53 63 91 117 159 273 371 477 689 819 1113 2067 3339 4823 6201 14469 43407 205703 617109 1439921 1851327 2674139 4319763 8022417 10902259 12959289 18718973 24067251 32706777 56156919 76315813 98120331 141729367 168470757 228947439 425188101 686842317 992105569 1275564303 2976316707 8928950121