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5203981 = 47263421
BaseRepresentation
bin10011110110100000001101
3100210101112001
4103312200031
52313011411
6303312301
762142646
oct23664015
910711461
105203981
112a34912
1218ab691
1311028a3
149966cd
156cbdc1
hex4f680d

5203981 has 8 divisors (see below), whose sum is σ = 5347584. Its totient is φ = 5061840.

The previous prime is 5203969. The next prime is 5203997. The reversal of 5203981 is 1893025.

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 5203981 - 25 = 5203949 is a prime.

It is a super-2 number, since 2×52039812 = 54162836496722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5203901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12151 + ... + 12571.

It is an arithmetic number, because the mean of its divisors is an integer number (668448).

Almost surely, 25203981 is an apocalyptic number.

It is an amenable number.

5203981 is a deficient number, since it is larger than the sum of its proper divisors (143603).

5203981 is a wasteful number, since it uses less digits than its factorization.

5203981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 731.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 5203981 is about 2281.2235751894. The cubic root of 5203981 is about 173.2920213018.

The spelling of 5203981 in words is "five million, two hundred three thousand, nine hundred eighty-one".

Divisors: 1 47 263 421 12361 19787 110723 5203981