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4989401 = 7276863
BaseRepresentation
bin10011000010000111011001
3100101111011122
4103002013121
52234130101
6254535025
760260234
oct23020731
910344148
104989401
1128a867a
121807475
131059011
1493c41b
1568851b
hex4c21d9

4989401 has 4 divisors (see below), whose sum is σ = 4996992. Its totient is φ = 4981812.

The previous prime is 4989377. The next prime is 4989409. The reversal of 4989401 is 1049894.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1049894 = 2524947.

It is a cyclic number.

It is not a de Polignac number, because 4989401 - 26 = 4989337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4989409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2705 + ... + 4158.

It is an arithmetic number, because the mean of its divisors is an integer number (1249248).

Almost surely, 24989401 is an apocalyptic number.

It is an amenable number.

4989401 is a deficient number, since it is larger than the sum of its proper divisors (7591).

4989401 is an equidigital number, since it uses as much as digits as its factorization.

4989401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7590.

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 4989401 is about 2233.6967117315. The cubic root of 4989401 is about 170.8766822903.

It can be divided in two parts, 49 and 89401, that multiplied together give a square (4380649 = 20932).

The spelling of 4989401 in words is "four million, nine hundred eighty-nine thousand, four hundred one".

Divisors: 1 727 6863 4989401