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505157341 = 1338858257
BaseRepresentation
bin11110000111000…
…001011011011101
31022012112122121011
4132013001123131
52013310013331
6122043135221
715342523633
oct3607013335
91265478534
10505157341
1123a16a207
12121214511
138086c690
144b139353
152e5363b1
hex1e1c16dd

505157341 has 4 divisors (see below), whose sum is σ = 544015612. Its totient is φ = 466299072.

The previous prime is 505157333. The next prime is 505157381. The reversal of 505157341 is 143751505.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 143751505 = 528750301.

It can be written as a sum of positive squares in 2 ways, for example, as 184389241 + 320768100 = 13579^2 + 17910^2 .

It is a cyclic number.

It is not a de Polignac number, because 505157341 - 23 = 505157333 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 (505157381) 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, 19429116 + ... + 19429141.

It is an arithmetic number, because the mean of its divisors is an integer number (136003903).

Almost surely, 2505157341 is an apocalyptic number.

It is an amenable number.

505157341 is a deficient number, since it is larger than the sum of its proper divisors (38858271).

505157341 is a wasteful number, since it uses less digits than its factorization.

505157341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38858270.

The product of its (nonzero) digits is 10500, while the sum is 31.

The square root of 505157341 is about 22475.7055729069. The cubic root of 505157341 is about 796.4201195691.

The spelling of 505157341 in words is "five hundred five million, one hundred fifty-seven thousand, three hundred forty-one".

Divisors: 1 13 38858257 505157341