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103121223 = 3132126021
BaseRepresentation
bin1100010010110…
…00000101000111
321012001002201120
412021120011013
5202344334343
614122125023
72361341652
oct611300507
9235032646
10103121223
1153233557
122a650773
131849739a
14d9a4899
1590be683
hex6258147

103121223 has 8 divisors (see below), whose sum is σ = 137604336. Its totient is φ = 68692800.

The previous prime is 103121209. The next prime is 103121237. The reversal of 103121223 is 322121301.

It is an interprime number because it is at equal distance from previous prime (103121209) and next prime (103121237).

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

It is not a de Polignac number, because 103121223 - 218 = 102859079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103121023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9048 + ... + 16973.

It is an arithmetic number, because the mean of its divisors is an integer number (17200542).

Almost surely, 2103121223 is an apocalyptic number.

103121223 is a deficient number, since it is larger than the sum of its proper divisors (34483113).

103121223 is a wasteful number, since it uses less digits than its factorization.

103121223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27345.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 103121223 is about 10154.8620374676. The cubic root of 103121223 is about 468.9386386717.

Adding to 103121223 its reverse (322121301), we get a palindrome (425242524).

The spelling of 103121223 in words is "one hundred three million, one hundred twenty-one thousand, two hundred twenty-three".

Divisors: 1 3 1321 3963 26021 78063 34373741 103121223