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625240319 = 11293752973
BaseRepresentation
bin100101010001000…
…110100011111111
31121120111111110212
4211101012203333
52240030142234
6142013023035
721331312034
oct4521064377
91546444425
10625240319
112a0a28340
12155484a7b
139c6c52b2
145d07738b
1539d565ce
hex254468ff

625240319 has 16 divisors (see below), whose sum is σ = 724684320. Its totient is φ = 533957760.

The previous prime is 625240313. The next prime is 625240327. The reversal of 625240319 is 913042526.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 625240319 - 212 = 625236223 is a prime.

It is a super-2 number, since 2×6252403192 = 781850913006443522, 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 (625240313) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14684 + ... + 38289.

It is an arithmetic number, because the mean of its divisors is an integer number (45292770).

Almost surely, 2625240319 is an apocalyptic number.

625240319 is a deficient number, since it is larger than the sum of its proper divisors (99444001).

625240319 is a wasteful number, since it uses less digits than its factorization.

625240319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53050.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 625240319 is about 25004.8059180630. The cubic root of 625240319 is about 855.0975432185.

The spelling of 625240319 in words is "six hundred twenty-five million, two hundred forty thousand, three hundred nineteen".

Divisors: 1 11 29 37 319 407 1073 11803 52973 582703 1536217 1960001 16898387 21560011 56840029 625240319