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203101213 = 7227127817
BaseRepresentation
bin11000001101100…
…01010000011101
3112011011121111011
430012301100131
5403443214323
632053055221
75014221550
oct1406612035
9464147434
10203101213
11a4710a47
1258027511
1333101a43
141cd8c697
1512c6d20d
hexc1b141d

203101213 has 8 divisors (see below), whose sum is σ = 233140032. Its totient is φ = 173318496.

The previous prime is 203101211. The next prime is 203101231. The reversal of 203101213 is 312101302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 203101213 - 21 = 203101211 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 203101193 and 203101202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203101211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62320 + ... + 65497.

It is an arithmetic number, because the mean of its divisors is an integer number (29142504).

Almost surely, 2203101213 is an apocalyptic number.

It is an amenable number.

203101213 is a deficient number, since it is larger than the sum of its proper divisors (30038819).

203101213 is a wasteful number, since it uses less digits than its factorization.

203101213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128051.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 203101213 is about 14251.3582861424. The cubic root of 203101213 is about 587.8107249018.

Adding to 203101213 its reverse (312101302), we get a palindrome (515202515).

The spelling of 203101213 in words is "two hundred three million, one hundred one thousand, two hundred thirteen".

Divisors: 1 7 227 1589 127817 894719 29014459 203101213