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620115070 = 25179346433
BaseRepresentation
bin100100111101100…
…011010001111110
31121012212002221211
4210331203101332
52232222140240
6141311115034
721236614441
oct4475432176
91535762854
10620115070
112990476a3
12153812a7a
139b61c4c3
145c501658
1539692bea
hex24f6347e

620115070 has 16 divisors (see below), whose sum is σ = 1122446160. Its totient is φ = 246659584.

The previous prime is 620115059. The next prime is 620115077. The reversal of 620115070 is 70511026.

It is a super-2 number, since 2×6201150702 = 769085400082209800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620115077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 171427 + ... + 175006.

It is an arithmetic number, because the mean of its divisors is an integer number (70152885).

Almost surely, 2620115070 is an apocalyptic number.

620115070 is a deficient number, since it is larger than the sum of its proper divisors (502331090).

620115070 is a wasteful number, since it uses less digits than its factorization.

620115070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346619.

The product of its (nonzero) digits is 420, while the sum is 22.

The square root of 620115070 is about 24902.1097499790. The cubic root of 620115070 is about 852.7546479721.

Adding to 620115070 its reverse (70511026), we get a palindrome (690626096).

It can be divided in two parts, 62011 and 5070, that added together give a square (67081 = 2592).

The spelling of 620115070 in words is "six hundred twenty million, one hundred fifteen thousand, seventy".

Divisors: 1 2 5 10 179 358 895 1790 346433 692866 1732165 3464330 62011507 124023014 310057535 620115070