Search a number
-
+
1303423912 = 237243531459
BaseRepresentation
bin100110110110000…
…1010101110101000
310100211121210110201
41031230022232220
510132134031122
6333200521544
744204630500
oct11554125650
93324553421
101303423912
1160982674a
123046202b4
1317a06656b
14c5172a00
1579669a27
hex4db0aba8

1303423912 has 96 divisors (see below), whose sum is σ = 2965960800. Its totient is φ = 534957696.

The previous prime is 1303423889. The next prime is 1303423951. The reversal of 1303423912 is 2193243031.

It is a Harshad number since it is a multiple of its sum of digits (28).

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, 892639 + ... + 894097.

It is an arithmetic number, because the mean of its divisors is an integer number (30895425).

Almost surely, 21303423912 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1303423912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1482980400).

1303423912 is an abundant number, since it is smaller than the sum of its proper divisors (1662536888).

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

1303423912 is a wasteful number, since it uses less digits than its factorization.

1303423912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1575 (or 1564 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 1303423912 is about 36102.9626485140. The cubic root of 1303423912 is about 1092.3502054502.

Adding to 1303423912 its reverse (2193243031), we get a palindrome (3496666943).

The spelling of 1303423912 in words is "one billion, three hundred three million, four hundred twenty-three thousand, nine hundred twelve".

Divisors: 1 2 4 7 8 14 28 43 49 53 56 86 98 106 172 196 212 301 344 371 392 424 602 742 1204 1459 1484 2107 2279 2408 2597 2918 2968 4214 4558 5194 5836 8428 9116 10213 10388 11672 15953 16856 18232 20426 20776 31906 40852 62737 63812 71491 77327 81704 111671 125474 127624 142982 154654 223342 250948 285964 309308 439159 446684 501896 541289 571928 618616 878318 893368 1082578 1756636 2165156 3074113 3325061 3513272 3789023 4330312 6148226 6650122 7578046 12296452 13300244 15156092 23275427 24592904 26600488 30312184 46550854 93101708 162927989 186203416 325855978 651711956 1303423912