Search a number
-
+
230161516 = 221319292277
BaseRepresentation
bin11011011011111…
…11110001101100
3121001002102020121
431231333301230
5432410132031
634501054324
75463224554
oct1555776154
9531072217
10230161516
11108a13832
12650b73a4
13388b7960
14227d4164
1515316011
hexdb7fc6c

230161516 has 72 divisors (see below), whose sum is σ = 474590480. Its totient is φ = 96816384.

The previous prime is 230161501. The next prime is 230161517. The reversal of 230161516 is 615161032.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230161517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 830770 + ... + 831046.

Almost surely, 2230161516 is an apocalyptic number.

230161516 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

230161516 is an abundant number, since it is smaller than the sum of its proper divisors (244428964).

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

230161516 is a wasteful number, since it uses less digits than its factorization.

230161516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371 (or 340 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 230161516 is about 15171.0749783923. The cubic root of 230161516 is about 612.8359537506.

The spelling of 230161516 in words is "two hundred thirty million, one hundred sixty-one thousand, five hundred sixteen".

Divisors: 1 2 4 13 19 26 29 38 52 58 76 116 247 277 377 494 551 554 754 841 988 1102 1108 1508 1682 2204 3364 3601 5263 7163 7202 8033 10526 10933 14326 14404 15979 16066 21052 21866 28652 31958 32132 43732 63916 68419 104429 136838 152627 207727 208858 232957 273676 305254 415454 417716 465914 610508 830908 931828 1984151 3028441 3968302 4426183 6056882 7936604 8852366 12113764 17704732 57540379 115080758 230161516