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228713413 = 1579144847
BaseRepresentation
bin11011010000111…
…10001111000101
3120221100211211011
431220132033011
5432022312123
634410042221
75445013645
oct1550361705
9527324734
10228713413
11108114855
1264719371
13384cb7a6
1422538525
151512be0d
hexda1e3c5

228713413 has 4 divisors (see below), whose sum is σ = 228859840. Its totient is φ = 228566988.

The previous prime is 228713383. The next prime is 228713437. The reversal of 228713413 is 314317822.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-228713413 is a prime.

It is a super-2 number, since 2×2287134132 = 104619650572217138, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228717413) 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, 70845 + ... + 74002.

It is an arithmetic number, because the mean of its divisors is an integer number (57214960).

Almost surely, 2228713413 is an apocalyptic number.

It is an amenable number.

228713413 is a deficient number, since it is larger than the sum of its proper divisors (146427).

228713413 is a wasteful number, since it uses less digits than its factorization.

228713413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146426.

The product of its digits is 8064, while the sum is 31.

The square root of 228713413 is about 15123.2738849761. The cubic root of 228713413 is about 611.5479925615.

The spelling of 228713413 in words is "two hundred twenty-eight million, seven hundred thirteen thousand, four hundred thirteen".

Divisors: 1 1579 144847 228713413