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228393074 = 27131254907
BaseRepresentation
bin11011001110100…
…00000001110010
3120220202120101202
431213100001302
5431432034244
634355131202
75442211010
oct1547200162
9526676352
10228393074
11107a16108
12645a3b02
1338418a40
14224938b0
15150b704e
hexd9d0072

228393074 has 16 divisors (see below), whose sum is σ = 421649088. Its totient is φ = 90353232.

The previous prime is 228393047. The next prime is 228393097. The reversal of 228393074 is 470393822.

It is a happy number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 627272 + ... + 627635.

It is an arithmetic number, because the mean of its divisors is an integer number (26353068).

Almost surely, 2228393074 is an apocalyptic number.

228393074 is a deficient number, since it is larger than the sum of its proper divisors (193256014).

228393074 is a wasteful number, since it uses less digits than its factorization.

228393074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1254929.

The product of its (nonzero) digits is 72576, while the sum is 38.

The square root of 228393074 is about 15112.6792462488. The cubic root of 228393074 is about 611.2623451184.

The spelling of 228393074 in words is "two hundred twenty-eight million, three hundred ninety-three thousand, seventy-four".

Divisors: 1 2 7 13 14 26 91 182 1254907 2509814 8784349 16313791 17568698 32627582 114196537 228393074