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228970364 = 2278177513
BaseRepresentation
bin11011010010111…
…00111101111100
3120221211220021212
431221130331330
5432104022424
634415343552
75450134040
oct1551347574
9527756255
10228970364
1110827a907
1264821bb8
133858b72c
14225a4020
151517d10e
hexda5cf7c

228970364 has 12 divisors (see below), whose sum is σ = 457940784. Its totient is φ = 98130144.

The previous prime is 228970351. The next prime is 228970369. The reversal of 228970364 is 463079822.

It is a happy number.

228970364 is an admirable number.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228970369) 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, 4088729 + ... + 4088784.

It is an arithmetic number, because the mean of its divisors is an integer number (38161732).

Almost surely, 2228970364 is an apocalyptic number.

It is an amenable number.

228970364 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

228970364 is a wasteful number, since it uses less digits than its factorization.

228970364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8177524 (or 8177522 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 41.

The square root of 228970364 is about 15131.7667177366. The cubic root of 228970364 is about 611.7769239808.

The spelling of 228970364 in words is "two hundred twenty-eight million, nine hundred seventy thousand, three hundred sixty-four".

Divisors: 1 2 4 7 14 28 8177513 16355026 32710052 57242591 114485182 228970364