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4202989 = 74191433
BaseRepresentation
bin10000000010000111101101
321220112102021
4100002013231
52033443424
6230030141
750503420
oct20020755
97815367
104202989
11241084a
1214a8351
13b4209b
147b59b7
155804e4
hex4021ed

4202989 has 8 divisors (see below), whose sum is σ = 4818240. Its totient is φ = 3591456.

The previous prime is 4202981. The next prime is 4202993. The reversal of 4202989 is 9892024.

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

It is a cyclic number.

It is not a de Polignac number, because 4202989 - 23 = 4202981 is a prime.

4202989 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4202981) 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, 2217 + ... + 3649.

It is an arithmetic number, because the mean of its divisors is an integer number (602280).

Almost surely, 24202989 is an apocalyptic number.

It is an amenable number.

4202989 is a deficient number, since it is larger than the sum of its proper divisors (615251).

4202989 is a wasteful number, since it uses less digits than its factorization.

4202989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1859.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 4202989 is about 2050.1192648234. The cubic root of 4202989 is about 161.3811296395.

The spelling of 4202989 in words is "four million, two hundred two thousand, nine hundred eighty-nine".

Divisors: 1 7 419 1433 2933 10031 600427 4202989