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620021141 = 6111878563
BaseRepresentation
bin100100111101001…
…100010110010101
31121012200100002222
4210331030112111
52232211134031
6141305112125
721236043545
oct4475142625
91535610088
10620021141
11298a93073
12153788645
139b5b881c
145c4b9325
1539674e7b
hex24f4c595

620021141 has 8 divisors (see below), whose sum is σ = 630789984. Its totient is φ = 609271920.

The previous prime is 620021137. The next prime is 620021183. The reversal of 620021141 is 141120026.

620021141 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 620021141 - 22 = 620021137 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 (620027141) 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, 68126 + ... + 76688.

It is an arithmetic number, because the mean of its divisors is an integer number (78848748).

Almost surely, 2620021141 is an apocalyptic number.

620021141 is a gapful number since it is divisible by the number (61) formed by its first and last digit.

It is an amenable number.

620021141 is a deficient number, since it is larger than the sum of its proper divisors (10768843).

620021141 is a wasteful number, since it uses less digits than its factorization.

620021141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9811.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 620021141 is about 24900.2237138545. The cubic root of 620021141 is about 852.7115901378.

Adding to 620021141 its reverse (141120026), we get a palindrome (761141167).

The spelling of 620021141 in words is "six hundred twenty million, twenty-one thousand, one hundred forty-one".

Divisors: 1 61 1187 8563 72407 522343 10164281 620021141