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4220461 = 74431361
BaseRepresentation
bin10000000110011000101101
321221102101101
4100012120231
52040023321
6230243101
750605360
oct20063055
97842341
104220461
112422993
1214b6491
13b4a01b
147bc0d7
15585791
hex40662d

4220461 has 8 divisors (see below), whose sum is σ = 4837824. Its totient is φ = 3606720.

The previous prime is 4220449. The next prime is 4220473. The reversal of 4220461 is 1640224.

It is an interprime number because it is at equal distance from previous prime (4220449) and next prime (4220473).

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

It is a cyclic number.

It is not a de Polignac number, because 4220461 - 29 = 4219949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4220441) 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, 2421 + ... + 3781.

It is an arithmetic number, because the mean of its divisors is an integer number (604728).

Almost surely, 24220461 is an apocalyptic number.

It is an amenable number.

4220461 is a deficient number, since it is larger than the sum of its proper divisors (617363).

4220461 is a wasteful number, since it uses less digits than its factorization.

4220461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1811.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 4220461 is about 2054.3760609976. The cubic root of 4220461 is about 161.6044431718.

Adding to 4220461 its reverse (1640224), we get a palindrome (5860685).

It can be divided in two parts, 42 and 20461, that added together give a triangular number (20503 = T202).

The spelling of 4220461 in words is "four million, two hundred twenty thousand, four hundred sixty-one".

Divisors: 1 7 443 1361 3101 9527 602923 4220461