Base | Representation |
---|---|
bin | 111001011110… |
… | …111110100010 |
3 | 1001100120220110 |
4 | 321132332202 |
5 | 12324202330 |
6 | 1254552150 |
7 | 242041131 |
oct | 71367642 |
9 | 31316813 |
10 | 15069090 |
11 | 85626a3 |
12 | 5068656 |
13 | 3177c2a |
14 | 2003918 |
15 | 14c9db0 |
hex | e5efa2 |
15069090 has 32 divisors (see below), whose sum is σ = 38070720. Its totient is φ = 3806784.
The previous prime is 15069079. The next prime is 15069091. The reversal of 15069090 is 9096051.
It is a Harshad number since it is a multiple of its sum of digits (30).
It is not an unprimeable number, because it can be changed into a prime (15069091) 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, 12649 + ... + 13788.
It is an arithmetic number, because the mean of its divisors is an integer number (1189710).
Almost surely, 215069090 is an apocalyptic number.
15069090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
15069090 is an abundant number, since it is smaller than the sum of its proper divisors (23001630).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
15069090 is a wasteful number, since it uses less digits than its factorization.
15069090 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 26466.
The product of its (nonzero) digits is 2430, while the sum is 30.
The square root of 15069090 is about 3881.8925796575. The cubic root of 15069090 is about 246.9992733291. Note that the first 3 decimals are identical.
The spelling of 15069090 in words is "fifteen million, sixty-nine thousand, ninety".
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