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202312230 = 23550913249
BaseRepresentation
bin11000000111100…
…00101000100110
3112002200112012120
430003300220212
5403242442410
632024130410
75004424401
oct1403605046
9462615176
10202312230
11a422219a
1257906a06
1332bb68a3
141cc24d38
1512b64570
hexc0f0a26

202312230 has 32 divisors (see below), whose sum is σ = 486540000. Its totient is φ = 53839872.

The previous prime is 202312211. The next prime is 202312261. The reversal of 202312230 is 32213202.

202312230 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8646 + ... + 21894.

It is an arithmetic number, because the mean of its divisors is an integer number (15204375).

Almost surely, 2202312230 is an apocalyptic number.

202312230 is an abundant number, since it is smaller than the sum of its proper divisors (284227770).

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

202312230 is a wasteful number, since it uses less digits than its factorization.

202312230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13768.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 202312230 is about 14223.6503753432. The cubic root of 202312230 is about 587.0485851823.

Adding to 202312230 its reverse (32213202), we get a palindrome (234525432).

The spelling of 202312230 in words is "two hundred two million, three hundred twelve thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 509 1018 1527 2545 3054 5090 7635 13249 15270 26498 39747 66245 79494 132490 198735 397470 6743741 13487482 20231223 33718705 40462446 67437410 101156115 202312230