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4245072 = 243136803
BaseRepresentation
bin10000001100011001010000
321222200010220
4100030121100
52041320242
6230553040
751040206
oct20143120
97880126
104245072
11243a427
121508780
13b582a0
147c7076
1558cbec
hex40c650

4245072 has 40 divisors (see below), whose sum is σ = 11811744. Its totient is φ = 1305984.

The previous prime is 4245029. The next prime is 4245077. The reversal of 4245072 is 2705424.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4245077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2778 + ... + 4025.

Almost surely, 24245072 is an apocalyptic number.

It is an amenable number.

4245072 is an abundant number, since it is smaller than the sum of its proper divisors (7566672).

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

4245072 is a wasteful number, since it uses less digits than its factorization.

4245072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6827 (or 6821 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 24.

The square root of 4245072 is about 2060.3572505757. The cubic root of 4245072 is about 161.9179587639.

The spelling of 4245072 in words is "four million, two hundred forty-five thousand, seventy-two".

Divisors: 1 2 3 4 6 8 12 13 16 24 26 39 48 52 78 104 156 208 312 624 6803 13606 20409 27212 40818 54424 81636 88439 108848 163272 176878 265317 326544 353756 530634 707512 1061268 1415024 2122536 4245072