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4781490 = 235722769
BaseRepresentation
bin10010001111010110110010
322222220222020
4102033112302
52211001430
6250252310
755433130
oct22172662
98886866
104781490
11277644a
121727096
13cb54ac
148c6750
15646b10
hex48f5b2

4781490 has 32 divisors (see below), whose sum is σ = 13115520. Its totient is φ = 1092864.

The previous prime is 4781489. The next prime is 4781507. The reversal of 4781490 is 941874.

4781490 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an alternating number because its digits alternate between even and odd.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11175 + ... + 11594.

It is an arithmetic number, because the mean of its divisors is an integer number (409860).

Almost surely, 24781490 is an apocalyptic number.

4781490 is an abundant number, since it is smaller than the sum of its proper divisors (8334030).

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

4781490 is a wasteful number, since it uses less digits than its factorization.

4781490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22786.

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 4781490 is about 2186.6618394256. The cubic root of 4781490 is about 168.4694212606.

The spelling of 4781490 in words is "four million, seven hundred eighty-one thousand, four hundred ninety".

Divisors: 1 2 3 5 6 7 10 14 15 21 30 35 42 70 105 210 22769 45538 68307 113845 136614 159383 227690 318766 341535 478149 683070 796915 956298 1593830 2390745 4781490