Search a number
-
+
121074251 = 1931205559
BaseRepresentation
bin1110011011101…
…11001001001011
322102211012122112
413031313021023
5221443334001
620003012535
73000054104
oct715671113
9272735575
10121074251
1162385971
123466a14b
131c111b8c
14121193ab
15a968cbb
hex737724b

121074251 has 8 divisors (see below), whose sum is σ = 131558400. Its totient is φ = 111001320.

The previous prime is 121074229. The next prime is 121074259. The reversal of 121074251 is 152470121.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-121074251 is a prime.

It is a super-2 number, since 2×1210742512 = 29317948510422002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121074259) 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, 102191 + ... + 103368.

It is an arithmetic number, because the mean of its divisors is an integer number (16444800).

Almost surely, 2121074251 is an apocalyptic number.

121074251 is a deficient number, since it is larger than the sum of its proper divisors (10484149).

121074251 is a wasteful number, since it uses less digits than its factorization.

121074251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205609.

The product of its (nonzero) digits is 560, while the sum is 23.

The square root of 121074251 is about 11003.3745278437. The cubic root of 121074251 is about 494.7098949705.

The spelling of 121074251 in words is "one hundred twenty-one million, seventy-four thousand, two hundred fifty-one".

Divisors: 1 19 31 589 205559 3905621 6372329 121074251