Search a number
-
+
1202301220 = 2254171107193
BaseRepresentation
bin100011110101001…
…1010100100100100
310002210100020012211
41013222122210210
54430242114340
6315145253204
741536251241
oct10752324444
93083306184
101202301220
1156773877a
12296794204
1316211ba53
14b596c5c8
15708425ea
hex47a9a924

1202301220 has 96 divisors (see below), whose sum is σ = 2661071616. Its totient is φ = 455884800.

The previous prime is 1202301197. The next prime is 1202301239. The reversal of 1202301220 is 221032021.

It is a super-2 number, since 2×12023012202 = 2891056447226976800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1202301220.

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, 6229444 + ... + 6229636.

It is an arithmetic number, because the mean of its divisors is an integer number (27719496).

Almost surely, 21202301220 is an apocalyptic number.

1202301220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1202301220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1330535808).

1202301220 is an abundant number, since it is smaller than the sum of its proper divisors (1458770396).

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

1202301220 is a wasteful number, since it uses less digits than its factorization.

1202301220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 421 (or 419 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 1202301220 is about 34674.2154922069. The cubic root of 1202301220 is about 1063.3374163051.

Adding to 1202301220 its reverse (221032021), we get a palindrome (1423333241).

The spelling of 1202301220 in words is "one billion, two hundred two million, three hundred one thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 41 71 82 107 142 164 193 205 214 284 355 386 410 428 535 710 772 820 965 1070 1420 1930 2140 2911 3860 4387 5822 7597 7913 8774 11644 13703 14555 15194 15826 17548 20651 21935 27406 29110 30388 31652 37985 39565 41302 43870 54812 58220 68515 75970 79130 82604 87740 103255 137030 151940 158260 206510 274060 311477 413020 561823 622954 846691 1123646 1245908 1466221 1557385 1693382 2247292 2809115 2932442 3114770 3386764 4233455 5618230 5864884 6229540 7331105 8466910 11236460 14662210 16933820 29324420 60115061 120230122 240460244 300575305 601150610 1202301220