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230221004 = 221317312271
BaseRepresentation
bin11011011100011…
…10010011001100
3121001012102211212
431232032103030
5432414033004
634502233552
75463563156
oct1556162314
9531172755
10230221004
11108a544a2
12651258b8
1338908a60
142280bad6
151532896e
hexdb8e4cc

230221004 has 72 divisors (see below), whose sum is σ = 476449344. Its totient is φ = 96422400.

The previous prime is 230220877. The next prime is 230221031. The reversal of 230221004 is 400122032.

It is a self number, because there is not a number n which added to its sum of digits gives 230221004.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 849389 + ... + 849659.

It is an arithmetic number, because the mean of its divisors is an integer number (6617352).

Almost surely, 2230221004 is an apocalyptic number.

It is an amenable number.

230221004 is an abundant number, since it is smaller than the sum of its proper divisors (246228340).

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

230221004 is a wasteful number, since it uses less digits than its factorization.

230221004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 367 (or 334 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 230221004 is about 15173.0354247263. The cubic root of 230221004 is about 612.8887474662. Note that the first 3 decimals are identical.

Adding to 230221004 its reverse (400122032), we get a palindrome (630343036).

The spelling of 230221004 in words is "two hundred thirty million, two hundred twenty-one thousand, four".

Divisors: 1 2 4 13 17 26 31 34 52 62 68 124 221 271 403 442 527 542 806 884 961 1054 1084 1612 1922 2108 3523 3844 4607 6851 7046 8401 9214 12493 13702 14092 16337 16802 18428 24986 27404 32674 33604 49972 59891 65348 109213 119782 142817 212381 218426 239564 260431 285634 424762 436852 520862 571268 849524 1041724 1856621 3385603 3713242 4427327 6771206 7426484 8854654 13542412 17709308 57555251 115110502 230221004