Base | Representation |
---|---|
bin | 100100010100… |
… | …1111001010110 |
3 | 1022211122011110 |
4 | 1020221321112 |
5 | 14333432344 |
6 | 1520115450 |
7 | 320613423 |
oct | 110517126 |
9 | 38748143 |
10 | 19045974 |
11 | a829582 |
12 | 6465b86 |
13 | 3c3b10c |
14 | 275ad4a |
15 | 1a133b9 |
hex | 1229e56 |
19045974 has 32 divisors (see below), whose sum is σ = 39261024. Its totient is φ = 6156800.
The previous prime is 19045937. The next prime is 19045979. The reversal of 19045974 is 47954091.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (19045979) 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, 31822 + ... + 32414.
It is an arithmetic number, because the mean of its divisors is an integer number (1226907).
Almost surely, 219045974 is an apocalyptic number.
19045974 is an abundant number, since it is smaller than the sum of its proper divisors (20215050).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
19045974 is a wasteful number, since it uses less digits than its factorization.
19045974 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 752.
The product of its (nonzero) digits is 45360, while the sum is 39.
The square root of 19045974 is about 4364.1693367696. The cubic root of 19045974 is about 267.0552144925.
It can be divided in two parts, 190 and 45974, that added together give a palindrome (46164).
The spelling of 19045974 in words is "nineteen million, forty-five thousand, nine hundred seventy-four".
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