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121960269 = 3315728771
BaseRepresentation
bin1110100010011…
…11011101001101
322111111020001000
413101033131031
5222210212034
620034010513
73010434204
oct721173515
9274436030
10121960269
1162930612
1234a16a39
131c362252
14122aa23b
15aa91599
hex744f74d

121960269 has 16 divisors (see below), whose sum is σ = 181839040. Its totient is φ = 80786160.

The previous prime is 121960249. The next prime is 121960291. The reversal of 121960269 is 962069121.

It is not a de Polignac number, because 121960269 - 27 = 121960141 is a prime.

It is a super-2 number, since 2×1219602692 = 29748614429104722, which contains 22 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 (121960249) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10147 + ... + 18624.

It is an arithmetic number, because the mean of its divisors is an integer number (11364940).

Almost surely, 2121960269 is an apocalyptic number.

It is an amenable number.

121960269 is a deficient number, since it is larger than the sum of its proper divisors (59878771).

121960269 is a wasteful number, since it uses less digits than its factorization.

121960269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28937 (or 28931 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 121960269 is about 11043.5623328707. The cubic root of 121960269 is about 495.9137209556.

The spelling of 121960269 in words is "one hundred twenty-one million, nine hundred sixty thousand, two hundred sixty-nine".

Divisors: 1 3 9 27 157 471 1413 4239 28771 86313 258939 776817 4517047 13551141 40653423 121960269