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228590372 = 221032772003
BaseRepresentation
bin11011010000000…
…00001100100100
3120221010121001002
431220000030210
5432004342442
634403252432
75443662143
oct1550001444
9527117032
10228590372
1110804036a
126467a118
133848779a
142250575a
1515105732
hexda00324

228590372 has 24 divisors (see below), whose sum is σ = 405577536. Its totient is φ = 112720608.

The previous prime is 228590357. The next prime is 228590377. The reversal of 228590372 is 273095822.

It is not an unprimeable number, because it can be changed into a prime (228590377) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113123 + ... + 115125.

It is an arithmetic number, because the mean of its divisors is an integer number (16899064).

Almost surely, 2228590372 is an apocalyptic number.

It is an amenable number.

228590372 is a deficient number, since it is larger than the sum of its proper divisors (176987164).

228590372 is a wasteful number, since it uses less digits than its factorization.

228590372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2387 (or 2385 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 228590372 is about 15119.2054024013. The cubic root of 228590372 is about 611.4383080253.

The spelling of 228590372 in words is "two hundred twenty-eight million, five hundred ninety thousand, three hundred seventy-two".

Divisors: 1 2 4 103 206 277 412 554 1108 2003 4006 8012 28531 57062 114124 206309 412618 554831 825236 1109662 2219324 57147593 114295186 228590372