Base | Representation |
---|---|
bin | 1110011110010… |
… | …11100010011010 |
3 | 22110110202211110 |
4 | 13033023202122 |
5 | 222040414210 |
6 | 20014241150 |
7 | 3003023652 |
oct | 717134232 |
9 | 273422743 |
10 | 121419930 |
11 | 625a1655 |
12 | 347b61b6 |
13 | 1c203318 |
14 | 121a9362 |
15 | a9d6420 |
hex | 73cb89a |
121419930 has 16 divisors (see below), whose sum is σ = 291407904. Its totient is φ = 32378640.
The previous prime is 121419929. The next prime is 121419931. The reversal of 121419930 is 39914121.
It is an interprime number because it is at equal distance from previous prime (121419929) and next prime (121419931).
It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 4047331 = 121419930 / (1 + 2 + 1 + 4 + 1 + 9 + 9 + 3 + 0).
It is not an unprimeable number, because it can be changed into a prime (121419931) 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, 2023636 + ... + 2023695.
It is an arithmetic number, because the mean of its divisors is an integer number (18212994).
Almost surely, 2121419930 is an apocalyptic number.
121419930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
121419930 is an abundant number, since it is smaller than the sum of its proper divisors (169987974).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
121419930 is a wasteful number, since it uses less digits than its factorization.
121419930 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4047341.
The product of its (nonzero) digits is 1944, while the sum is 30.
The square root of 121419930 is about 11019.0711949783. The cubic root of 121419930 is about 495.1802628841.
The spelling of 121419930 in words is "one hundred twenty-one million, four hundred nineteen thousand, nine hundred thirty".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.073 sec. • engine limits •