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230530347 = 3347389467
BaseRepresentation
bin11011011110110…
…01110100101011
3121001210011012000
431233121310223
5433003432342
634513022043
75466322065
oct1557316453
9531704160
10230530347
11109145953
1265254923
13389b67b8
142288c735
151538a44c
hexdbd9d2b

230530347 has 32 divisors (see below), whose sum is σ = 350438400. Its totient is φ = 149709024.

The previous prime is 230530343. The next prime is 230530361. The reversal of 230530347 is 743035032.

It is not a de Polignac number, because 230530347 - 22 = 230530343 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 230530347.

It is not an unprimeable number, because it can be changed into a prime (230530343) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 493408 + ... + 493874.

It is an arithmetic number, because the mean of its divisors is an integer number (10951200).

Almost surely, 2230530347 is an apocalyptic number.

230530347 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

230530347 is a deficient number, since it is larger than the sum of its proper divisors (119908053).

230530347 is a wasteful number, since it uses less digits than its factorization.

230530347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 912 (or 906 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 27.

The square root of 230530347 is about 15183.2258430150. The cubic root of 230530347 is about 613.1631330733.

Adding to 230530347 its reverse (743035032), we get a palindrome (973565379).

The spelling of 230530347 in words is "two hundred thirty million, five hundred thirty thousand, three hundred forty-seven".

Divisors: 1 3 9 27 47 141 389 423 467 1167 1269 1401 3501 4203 10503 12609 18283 21949 54849 65847 164547 181663 197541 493641 544989 592623 1634967 4904901 8538161 25614483 76843449 230530347