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4378245 = 351511933
BaseRepresentation
bin10000101100111010000101
322020102211020
4100230322011
52110100440
6233501353
752133364
oct20547205
98212736
104378245
112520493
121571859
13ba3aa1
1481d7db
155b73d0
hex42ce85

4378245 has 16 divisors (see below), whose sum is σ = 7055232. Its totient is φ = 2318400.

The previous prime is 4378243. The next prime is 4378271. The reversal of 4378245 is 5428734.

It is not a de Polignac number, because 4378245 - 21 = 4378243 is a prime.

It is a d-powerful number, because it can be written as 43 + 3 + 76 + 82 + 222 + 48 + 54 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4378243) 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, 1299 + ... + 3231.

It is an arithmetic number, because the mean of its divisors is an integer number (440952).

Almost surely, 24378245 is an apocalyptic number.

It is an amenable number.

4378245 is a deficient number, since it is larger than the sum of its proper divisors (2676987).

4378245 is a wasteful number, since it uses less digits than its factorization.

4378245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2092.

The product of its digits is 26880, while the sum is 33.

The square root of 4378245 is about 2092.4256259184. The cubic root of 4378245 is about 163.5937421263.

The spelling of 4378245 in words is "four million, three hundred seventy-eight thousand, two hundred forty-five".

Divisors: 1 3 5 15 151 453 755 1933 2265 5799 9665 28995 291883 875649 1459415 4378245