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4270725 = 35521937
BaseRepresentation
bin10000010010101010000101
322000222100000
4100102222011
52043130400
6231311513
751205044
oct20225205
98028300
104270725
112457728
12151b599
13b66b74
147d255b
15595600
hex412a85

4270725 has 72 divisors (see below), whose sum is σ = 8575840. Its totient is φ = 2099520.

The previous prime is 4270703. The next prime is 4270727. The reversal of 4270725 is 5270724.

It is not a de Polignac number, because 4270725 - 212 = 4266629 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4270727) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 115407 + ... + 115443.

Almost surely, 24270725 is an apocalyptic number.

4270725 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4270725 is an abundant number, since it is smaller than the sum of its proper divisors (4305115).

4270725 is a wasteful number, since it uses less digits than its factorization.

4270725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81 (or 64 counting only the distinct ones).

The product of its (nonzero) digits is 3920, while the sum is 27.

The square root of 4270725 is about 2066.5732505769. The cubic root of 4270725 is about 162.2434610926.

Subtracting 4270725 from its reverse (5270724), we obtain a palindrome (999999).

The spelling of 4270725 in words is "four million, two hundred seventy thousand, seven hundred twenty-five".

Divisors: 1 3 5 9 15 19 25 27 37 45 57 75 81 95 111 135 171 185 225 243 285 333 405 475 513 555 675 703 855 925 999 1215 1425 1539 1665 2025 2109 2565 2775 2997 3515 4275 4617 4995 6075 6327 7695 8325 8991 10545 12825 14985 17575 18981 23085 24975 31635 38475 44955 52725 56943 74925 94905 115425 158175 170829 224775 284715 474525 854145 1423575 4270725