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228762501 = 3116932197
BaseRepresentation
bin11011010001010…
…10001110000101
3120221110100011020
431220222032011
5432030400001
634411101353
75445310032
oct1550521605
9527410136
10228762501
11108148720
1264741859
1338517c36
142254c389
151513b736
hexda2a385

228762501 has 8 divisors (see below), whose sum is σ = 332745504. Its totient is φ = 138643920.

The previous prime is 228762487. The next prime is 228762503. The reversal of 228762501 is 105267822.

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

It is not a de Polignac number, because 228762501 - 26 = 228762437 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 6932197 = 228762501 / (2 + 2 + 8 + 7 + 6 + 2 + 5 + 0 + 1).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228762503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3466066 + ... + 3466131.

It is an arithmetic number, because the mean of its divisors is an integer number (41593188).

Almost surely, 2228762501 is an apocalyptic number.

It is an amenable number.

228762501 is a deficient number, since it is larger than the sum of its proper divisors (103983003).

228762501 is a wasteful number, since it uses less digits than its factorization.

228762501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6932211.

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 228762501 is about 15124.8967269202. The cubic root of 228762501 is about 611.5917409364.

The spelling of 228762501 in words is "two hundred twenty-eight million, seven hundred sixty-two thousand, five hundred one".

Divisors: 1 3 11 33 6932197 20796591 76254167 228762501