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242351525 = 5213745697
BaseRepresentation
bin11100111000111…
…11110110100101
3121220000201210102
432130133312211
5444020222100
640014233445
76001645133
oct1634376645
9556021712
10242351525
1111488a319
12691b5885
133b295290
1424288753
1516422cd5
hexe71fda5

242351525 has 12 divisors (see below), whose sum is σ = 323632932. Its totient is φ = 178967040.

The previous prime is 242351513. The next prime is 242351573. The reversal of 242351525 is 525153242.

It can be written as a sum of positive squares in 6 ways, for example, as 7219969 + 235131556 = 2687^2 + 15334^2 .

It is not a de Polignac number, because 242351525 - 24 = 242351509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 372524 + ... + 373173.

It is an arithmetic number, because the mean of its divisors is an integer number (26969411).

Almost surely, 2242351525 is an apocalyptic number.

242351525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

242351525 is a deficient number, since it is larger than the sum of its proper divisors (81281407).

242351525 is a wasteful number, since it uses less digits than its factorization.

242351525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 745720 (or 745715 counting only the distinct ones).

The product of its digits is 12000, while the sum is 29.

The square root of 242351525 is about 15567.6435275221. The cubic root of 242351525 is about 623.4695567820.

The spelling of 242351525 in words is "two hundred forty-two million, three hundred fifty-one thousand, five hundred twenty-five".

Divisors: 1 5 13 25 65 325 745697 3728485 9694061 18642425 48470305 242351525