Search a number
-
+
620258401 = 7194663597
BaseRepresentation
bin100100111110000…
…110010001100001
31121020010101120101
4210332012101201
52232241232101
6141314142401
721241052350
oct4476062141
91536111511
10620258401
11299135354
12153881a01
139b66c809
145c53b997
15396c0401
hex24f86461

620258401 has 8 divisors (see below), whose sum is σ = 746175680. Its totient is φ = 503668368.

The previous prime is 620258381. The next prime is 620258423. The reversal of 620258401 is 104852026.

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

It is not a de Polignac number, because 620258401 - 25 = 620258369 is a prime.

It is a super-2 number, since 2×6202584012 = 769440968022153602, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 620258401.

It is not an unprimeable number, because it can be changed into a prime (620258501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2331666 + ... + 2331931.

It is an arithmetic number, because the mean of its divisors is an integer number (93271960).

Almost surely, 2620258401 is an apocalyptic number.

It is an amenable number.

620258401 is a deficient number, since it is larger than the sum of its proper divisors (125917279).

620258401 is a wasteful number, since it uses less digits than its factorization.

620258401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4663623.

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 620258401 is about 24904.9874723920. The cubic root of 620258401 is about 852.8203437151.

The spelling of 620258401 in words is "six hundred twenty million, two hundred fifty-eight thousand, four hundred one".

Divisors: 1 7 19 133 4663597 32645179 88608343 620258401