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352286137 = 727189513
BaseRepresentation
bin10100111111110…
…111010110111001
3220112212222201201
4110333313112321
51210141124022
654542414201
711505245200
oct2477672671
9815788651
10352286137
11170946875
1299b91361
1357ca6948
1434b04237
1520ddb127
hex14ff75b9

352286137 has 6 divisors (see below), whose sum is σ = 409802298. Its totient is φ = 301959504.

The previous prime is 352286131. The next prime is 352286149. The reversal of 352286137 is 731682253.

It can be written as a sum of positive squares in only one way, i.e., 348792976 + 3493161 = 18676^2 + 1869^2 .

It is not a de Polignac number, because 352286137 - 223 = 343897529 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 352286096 and 352286105.

It is not an unprimeable number, because it can be changed into a prime (352286131) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3594708 + ... + 3594805.

It is an arithmetic number, because the mean of its divisors is an integer number (68300383).

Almost surely, 2352286137 is an apocalyptic number.

It is an amenable number.

352286137 is a deficient number, since it is larger than the sum of its proper divisors (57516161).

352286137 is an equidigital number, since it uses as much as digits as its factorization.

352286137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7189527 (or 7189520 counting only the distinct ones).

The product of its digits is 60480, while the sum is 37.

The square root of 352286137 is about 18769.2870669080. The cubic root of 352286137 is about 706.2609340516.

The spelling of 352286137 in words is "three hundred fifty-two million, two hundred eighty-six thousand, one hundred thirty-seven".

Divisors: 1 7 49 7189513 50326591 352286137