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625069105 = 51131106317
BaseRepresentation
bin100101010000011…
…100110000110001
31121120011210121121
4211100130300301
52240004202410
6142005222241
721326666623
oct4520346061
91546153547
10625069105
112a0920741
12155401981
139c66539b
145d030c13
1539d209da
hex2541cc31

625069105 has 8 divisors (see below), whose sum is σ = 756721512. Its totient is φ = 495629568.

The previous prime is 625069097. The next prime is 625069117. The reversal of 625069105 is 501960526.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 15374241 + 609694864 = 3921^2 + 24692^2 .

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 625069105 - 23 = 625069097 is a prime.

It is a super-2 number, since 2×6250691052 = 781422772051002050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 552594 + ... + 553723.

It is an arithmetic number, because the mean of its divisors is an integer number (94590189).

Almost surely, 2625069105 is an apocalyptic number.

It is an amenable number.

625069105 is a deficient number, since it is larger than the sum of its proper divisors (131652407).

625069105 is a wasteful number, since it uses less digits than its factorization.

625069105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1106435.

The product of its (nonzero) digits is 16200, while the sum is 34.

The square root of 625069105 is about 25001.3820617981. The cubic root of 625069105 is about 855.0194836138.

The spelling of 625069105 in words is "six hundred twenty-five million, sixty-nine thousand, one hundred five".

Divisors: 1 5 113 565 1106317 5531585 125013821 625069105