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4144709 = 291311091
BaseRepresentation
bin1111110011111001000101
321210120110202
433303321011
52030112314
6224500245
750141462
oct17637105
97716422
104144709
112380a88
12147a685
13b216ba
1479c669
1556d0de
hex3f3e45

4144709 has 8 divisors (see below), whose sum is σ = 4324320. Its totient is φ = 3967600.

The previous prime is 4144681. The next prime is 4144711. The reversal of 4144709 is 9074414.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-4144709 is a prime.

It is a super-2 number, since 2×41447092 = 34357225389362, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4144729) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3254 + ... + 4344.

It is an arithmetic number, because the mean of its divisors is an integer number (540540).

Almost surely, 24144709 is an apocalyptic number.

It is an amenable number.

4144709 is a deficient number, since it is larger than the sum of its proper divisors (179611).

4144709 is a wasteful number, since it uses less digits than its factorization.

4144709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1251.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 4144709 is about 2035.8558396900. The cubic root of 4144709 is about 160.6317341875.

The spelling of 4144709 in words is "four million, one hundred forty-four thousand, seven hundred nine".

Divisors: 1 29 131 1091 3799 31639 142921 4144709