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70208 = 261097
BaseRepresentation
bin10001001001000000
310120022022
4101021000
54221313
61301012
7411455
oct211100
9116268
1070208
1148826
1234768
1325c58
141b82c
1515c08
hex11240

70208 has 14 divisors (see below), whose sum is σ = 139446. Its totient is φ = 35072.

The previous prime is 70207. The next prime is 70223. The reversal of 70208 is 80207.

It can be written as a sum of positive squares in only one way, i.e., 53824 + 16384 = 232^2 + 128^2 .

It is a nialpdrome in base 8.

It is not an unprimeable number, because it can be changed into a prime (70201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 485 + ... + 612.

270208 is an apocalyptic number.

It is an amenable number.

70208 is a deficient number, since it is larger than the sum of its proper divisors (69238).

70208 is a wasteful number, since it uses less digits than its factorization.

70208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1109 (or 1099 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 17.

The square root of 70208 is about 264.9679225869. The cubic root of 70208 is about 41.2536329827.

Adding to 70208 its sum of digits (17), we get a square (70225 = 2652).

Subtracting 70208 from its reverse (80207), we obtain a palindrome (9999).

The spelling of 70208 in words is "seventy thousand, two hundred eight".

Divisors: 1 2 4 8 16 32 64 1097 2194 4388 8776 17552 35104 70208