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3889490 = 2511191861
BaseRepresentation
bin1110110101100101010010
321022121101012
432311211102
51443430430
6215210522
745026423
oct16654522
97277335
103889490
112217260
121376a42
13a62497
1473364a
1551c695
hex3b5952

3889490 has 32 divisors (see below), whose sum is σ = 8043840. Its totient is φ = 1339200.

The previous prime is 3889489. The next prime is 3889493. The reversal of 3889490 is 949883.

It is not an unprimeable number, because it can be changed into a prime (3889493) 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, 1160 + ... + 3020.

It is an arithmetic number, because the mean of its divisors is an integer number (251370).

Almost surely, 23889490 is an apocalyptic number.

3889490 is an abundant number, since it is smaller than the sum of its proper divisors (4154350).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3889490 is a wasteful number, since it uses less digits than its factorization.

3889490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1898.

The product of its (nonzero) digits is 62208, while the sum is 41.

The square root of 3889490 is about 1972.1789979614. The cubic root of 3889490 is about 157.2645680453.

The spelling of 3889490 in words is "three million, eight hundred eighty-nine thousand, four hundred ninety".

Divisors: 1 2 5 10 11 19 22 38 55 95 110 190 209 418 1045 1861 2090 3722 9305 18610 20471 35359 40942 70718 102355 176795 204710 353590 388949 777898 1944745 3889490