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230028736 = 267273351
BaseRepresentation
bin11011011010111…
…11010111000000
3121000211200002211
431231133113000
5432341404421
634454151504
75462132500
oct1555372700
9530750084
10230028736
11108932aa3
1265052594
133886c3a2
142279ba00
15152db9e1
hexdb5f5c0

230028736 has 42 divisors (see below), whose sum is σ = 530995128. Its totient is φ = 98582400.

The previous prime is 230028703. The next prime is 230028739. The reversal of 230028736 is 637820032.

It is a junction number, because it is equal to n+sod(n) for n = 230028698 and 230028707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230028739) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 33540 + ... + 39811.

Almost surely, 2230028736 is an apocalyptic number.

It is an amenable number.

230028736 is an abundant number, since it is smaller than the sum of its proper divisors (300966392).

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

230028736 is an equidigital number, since it uses as much as digits as its factorization.

230028736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73377 (or 73360 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 230028736 is about 15166.6982563774. The cubic root of 230028736 is about 612.7180828858.

Adding to 230028736 its reverse (637820032), we get a palindrome (867848768).

The spelling of 230028736 in words is "two hundred thirty million, twenty-eight thousand, seven hundred thirty-six".

Divisors: 1 2 4 7 8 14 16 28 32 49 56 64 98 112 196 224 392 448 784 1568 3136 73351 146702 293404 513457 586808 1026914 1173616 2053828 2347232 3594199 4107656 4694464 7188398 8215312 14376796 16430624 28753592 32861248 57507184 115014368 230028736