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233725345 = 57419469
BaseRepresentation
bin11011110111001…
…01110110100001
3121021210110220021
431323211312201
5434313202340
635105313441
75535430000
oct1573456641
9537713807
10233725345
1110aa28347
1266335881
1339564b29
1423080c37
15157bbe4a
hexdee5da1

233725345 has 20 divisors (see below), whose sum is σ = 327212820. Its totient is φ = 160260576.

The previous prime is 233725291. The next prime is 233725357. The reversal of 233725345 is 543527332.

It can be written as a sum of positive squares in 2 ways, for example, as 84860944 + 148864401 = 9212^2 + 12201^2 .

It is not a de Polignac number, because 233725345 - 215 = 233692577 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 233725345.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2271 + ... + 21739.

It is an arithmetic number, because the mean of its divisors is an integer number (16360641).

Almost surely, 2233725345 is an apocalyptic number.

It is an amenable number.

233725345 is a deficient number, since it is larger than the sum of its proper divisors (93487475).

233725345 is an frugal number, since it uses more digits than its factorization.

233725345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19502 (or 19481 counting only the distinct ones).

The product of its digits is 75600, while the sum is 34.

The square root of 233725345 is about 15288.0785254394. The cubic root of 233725345 is about 615.9828249344.

The spelling of 233725345 in words is "two hundred thirty-three million, seven hundred twenty-five thousand, three hundred forty-five".

Divisors: 1 5 7 35 49 245 343 1715 2401 12005 19469 97345 136283 681415 953981 4769905 6677867 33389335 46745069 233725345