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121889303 = 1731231289
BaseRepresentation
bin1110100001111…
…10001000010111
322111100121200122
413100332020113
5222200424203
620032302155
73010020254
oct720761027
9274317618
10121889303
1162892268
12349a195b
131c338b63
141228c42b
15aa7a538
hex743e217

121889303 has 8 divisors (see below), whose sum is σ = 133223040. Its totient is φ = 111018240.

The previous prime is 121889279. The next prime is 121889309. The reversal of 121889303 is 303988121.

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 121889303 - 210 = 121888279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121889309) 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, 115118 + ... + 116171.

It is an arithmetic number, because the mean of its divisors is an integer number (16652880).

Almost surely, 2121889303 is an apocalyptic number.

121889303 is a deficient number, since it is larger than the sum of its proper divisors (11333737).

121889303 is a wasteful number, since it uses less digits than its factorization.

121889303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231337.

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 121889303 is about 11040.3488622416. The cubic root of 121889303 is about 495.8175151950.

The spelling of 121889303 in words is "one hundred twenty-one million, eight hundred eighty-nine thousand, three hundred three".

Divisors: 1 17 31 527 231289 3931913 7169959 121889303