Search a number
-
+
1230562460 = 225477379227
BaseRepresentation
bin100100101011000…
…1110010010011100
310011202112001100102
41021112032102130
510010010444320
6322035120232
742331415441
oct11126162234
93152461312
101230562460
11581690876
122a4143078
13167c3548a
14b96079c8
1573076175
hex4958e49c

1230562460 has 96 divisors (see below), whose sum is σ = 2721116160. Its totient is φ = 467071488.

The previous prime is 1230562451. The next prime is 1230562471. The reversal of 1230562460 is 642650321.

It is a super-2 number, since 2×12305624602 = 3028567935922503200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5420867 + ... + 5421093.

It is an arithmetic number, because the mean of its divisors is an integer number (28344960).

Almost surely, 21230562460 is an apocalyptic number.

1230562460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1230562460 is an abundant number, since it is smaller than the sum of its proper divisors (1490553700).

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

1230562460 is a wasteful number, since it uses less digits than its factorization.

1230562460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 435 (or 433 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 1230562460 is about 35079.3737116272. The cubic root of 1230562460 is about 1071.6045626502.

The spelling of 1230562460 in words is "one billion, two hundred thirty million, five hundred sixty-two thousand, four hundred sixty".

Divisors: 1 2 4 5 10 20 47 73 79 94 146 158 188 227 235 292 316 365 395 454 470 730 790 908 940 1135 1460 1580 2270 3431 3713 4540 5767 6862 7426 10669 11534 13724 14852 16571 17155 17933 18565 21338 23068 28835 33142 34310 35866 37130 42676 53345 57670 66284 68620 71732 74260 82855 89665 106690 115340 165710 179330 213380 271049 331420 358660 542098 778837 842851 1084196 1309109 1355245 1557674 1685702 2618218 2710490 3115348 3371404 3894185 4214255 5236436 5420980 6545545 7788370 8428510 13091090 15576740 16857020 26182180 61528123 123056246 246112492 307640615 615281230 1230562460