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620940941 = 4143973631
BaseRepresentation
bin100101000000101…
…100111010001101
31121021102001211122
4211000230322031
52232430102231
6141340530325
721246624305
oct4500547215
91537361748
10620940941
11299561135
12153b509a5
139b84b39a
145c678605
15397a777b
hex2502ce8d

620940941 has 16 divisors (see below), whose sum is σ = 657769728. Its totient is φ = 585446400.

The previous prime is 620940907. The next prime is 620940949. The reversal of 620940941 is 149049026.

It is a cyclic number.

It is not a de Polignac number, because 620940941 - 26 = 620940877 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 (620940949) 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 15 ways as a sum of consecutive naturals, for example, 169196 + ... + 172826.

It is an arithmetic number, because the mean of its divisors is an integer number (41110608).

Almost surely, 2620940941 is an apocalyptic number.

It is an amenable number.

620940941 is a deficient number, since it is larger than the sum of its proper divisors (36828787).

620940941 is a wasteful number, since it uses less digits than its factorization.

620940941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3812.

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 620940941 is about 24918.6865825629. The cubic root of 620940941 is about 853.1330470530.

Adding to 620940941 its reverse (149049026), we get a palindrome (769989967).

The spelling of 620940941 in words is "six hundred twenty million, nine hundred forty thousand, nine hundred forty-one".

Divisors: 1 41 43 97 1763 3631 3977 4171 148871 156133 171011 352207 6401453 14440487 15144901 620940941