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228150859 = 297867271
BaseRepresentation
bin11011001100101…
…00111001001011
3120220022021010211
431212110321023
5431401311414
634350021551
75440151566
oct1546247113
9526267124
10228150859
11107870132
12644a78b7
1338362711
142242d4dd
151506a3c4
hexd994e4b

228150859 has 4 divisors (see below), whose sum is σ = 236018160. Its totient is φ = 220283560.

The previous prime is 228150851. The next prime is 228150889. The reversal of 228150859 is 958051822.

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

It is a cyclic number.

It is not a de Polignac number, because 228150859 - 23 = 228150851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (228150851) 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, 3933607 + ... + 3933664.

It is an arithmetic number, because the mean of its divisors is an integer number (59004540).

Almost surely, 2228150859 is an apocalyptic number.

228150859 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

228150859 is a deficient number, since it is larger than the sum of its proper divisors (7867301).

228150859 is an equidigital number, since it uses as much as digits as its factorization.

228150859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7867300.

The product of its (nonzero) digits is 57600, while the sum is 40.

The square root of 228150859 is about 15104.6634851625. The cubic root of 228150859 is about 611.0461837491.

The spelling of 228150859 in words is "two hundred twenty-eight million, one hundred fifty thousand, eight hundred fifty-nine".

Divisors: 1 29 7867271 228150859