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68900203 = 232995661
BaseRepresentation
bin1000001101101…
…01010101101011
311210122111022101
410012311111223
5120114301303
610500434231
71464433141
oct406652553
9153574271
1068900203
113598a819
121b0a8977
1311375068
149217591
1560aed1d
hex41b556b

68900203 has 4 divisors (see below), whose sum is σ = 71895888. Its totient is φ = 65904520.

The previous prime is 68900173. The next prime is 68900207. The reversal of 68900203 is 30200986.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-68900203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68900207) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1497808 + ... + 1497853.

It is an arithmetic number, because the mean of its divisors is an integer number (17973972).

Almost surely, 268900203 is an apocalyptic number.

68900203 is a deficient number, since it is larger than the sum of its proper divisors (2995685).

68900203 is a wasteful number, since it uses less digits than its factorization.

68900203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2995684.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 68900203 is about 8300.6146157980. The cubic root of 68900203 is about 409.9587565096.

The spelling of 68900203 in words is "sixty-eight million, nine hundred thousand, two hundred three".

Divisors: 1 23 2995661 68900203