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52957242 = 23213226313
BaseRepresentation
bin1100101000000…
…1000000111010
310200122111200100
43022001000322
5102024112432
65131020230
71212062202
oct312010072
9120574610
1052957242
1127990618
121589a676
13ac82460
147067402
1549b107c
hex328103a

52957242 has 24 divisors (see below), whose sum is σ = 123567444. Its totient is φ = 16294464.

The previous prime is 52957241. The next prime is 52957243. The reversal of 52957242 is 24275925.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (52957241) and next prime (52957243).

It can be written as a sum of positive squares in 2 ways, for example, as 50680161 + 2277081 = 7119^2 + 1509^2 .

It is a junction number, because it is equal to n+sod(n) for n = 52957197 and 52957206.

It is not an unprimeable number, because it can be changed into a prime (52957241) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 112923 + ... + 113390.

Almost surely, 252957242 is an apocalyptic number.

52957242 is an abundant number, since it is smaller than the sum of its proper divisors (70610202).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52957242 is a wasteful number, since it uses less digits than its factorization.

52957242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226334 (or 226331 counting only the distinct ones).

The product of its digits is 50400, while the sum is 36.

The square root of 52957242 is about 7277.1726652595. The cubic root of 52957242 is about 375.5275348706.

The spelling of 52957242 in words is "fifty-two million, nine hundred fifty-seven thousand, two hundred forty-two".

Divisors: 1 2 3 6 9 13 18 26 39 78 117 234 226313 452626 678939 1357878 2036817 2942069 4073634 5884138 8826207 17652414 26478621 52957242