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620167141 = 1156378831
BaseRepresentation
bin100100111101101…
…111111111100101
31121012221202101101
4210331233333211
52232230322031
6141312200101
721240222316
oct4475577745
91535852341
10620167141
11299082830
12153839031
139b63a109
145c51660d
15396a3361
hex24f6ffe5

620167141 has 4 divisors (see below), whose sum is σ = 676545984. Its totient is φ = 563788300.

The previous prime is 620167139. The next prime is 620167153. The reversal of 620167141 is 141761026.

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.

It is a cyclic number.

It is not a de Polignac number, because 620167141 - 21 = 620167139 is a prime.

It is a super-2 number, since 2×6201671412 = 769214565552227762, 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 (620167181) 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, 28189405 + ... + 28189426.

It is an arithmetic number, because the mean of its divisors is an integer number (169136496).

Almost surely, 2620167141 is an apocalyptic number.

It is an amenable number.

620167141 is a deficient number, since it is larger than the sum of its proper divisors (56378843).

620167141 is a wasteful number, since it uses less digits than its factorization.

620167141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56378842.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 620167141 is about 24903.1552418564. The cubic root of 620167141 is about 852.7785158781.

It can be divided in two parts, 620 and 167141, that added together give a palindrome (167761).

The spelling of 620167141 in words is "six hundred twenty million, one hundred sixty-seven thousand, one hundred forty-one".

Divisors: 1 11 56378831 620167141