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2281296121 = 13761230597
BaseRepresentation
bin1000011111111001…
…1101000011111001
312212222122211221221
42013332131003321
514133002433441
61014212032041
7110350461046
oct20776350371
95788584857
102281296121
11a708065a5
12538002621
132a4826980
14178da01cd
15d54298d1
hex87f9d0f9

2281296121 has 8 divisors (see below), whose sum is σ = 2460019464. Its totient is φ = 2103035520.

The previous prime is 2281296089. The next prime is 2281296131. The reversal of 2281296121 is 1216921822.

It can be written as a sum of positive squares in 4 ways, for example, as 52417600 + 2228878521 = 7240^2 + 47211^2 .

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 2281296121 - 25 = 2281296089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2281296131) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 105406 + ... + 125191.

It is an arithmetic number, because the mean of its divisors is an integer number (307502433).

Almost surely, 22281296121 is an apocalyptic number.

It is an amenable number.

2281296121 is a deficient number, since it is larger than the sum of its proper divisors (178723343).

2281296121 is a wasteful number, since it uses less digits than its factorization.

2281296121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231371.

The product of its digits is 6912, while the sum is 34.

The square root of 2281296121 is about 47762.9157506114. The cubic root of 2281296121 is about 1316.4182284521.

The spelling of 2281296121 in words is "two billion, two hundred eighty-one million, two hundred ninety-six thousand, one hundred twenty-one".

Divisors: 1 13 761 9893 230597 2997761 175484317 2281296121