Search a number
-
+
1320313230 = 233519257371
BaseRepresentation
bin100111010110010…
…0110000110001110
310102000101212021000
41032230212012032
510201000010410
6335002521130
744501322465
oct11654460616
93360355230
101320313230
11618311965
1230a2061a6
131806cab42
14c74cb9dc
157ada3dc0
hex4eb2618e

1320313230 has 64 divisors (see below), whose sum is σ = 3706156800. Its totient is φ = 333551520.

The previous prime is 1320313153. The next prime is 1320313243. The reversal of 1320313230 is 323130231.

1320313230 is a `hidden beast` number, since 1 + 320 + 313 + 2 + 30 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

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, 123556 + ... + 133815.

It is an arithmetic number, because the mean of its divisors is an integer number (57908700).

Almost surely, 21320313230 is an apocalyptic number.

1320313230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1320313230 is an abundant number, since it is smaller than the sum of its proper divisors (2385843570).

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

1320313230 is a wasteful number, since it uses less digits than its factorization.

1320313230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257406 (or 257400 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

The square root of 1320313230 is about 36336.1146794756. The cubic root of 1320313230 is about 1097.0480716018.

Adding to 1320313230 its reverse (323130231), we get a palindrome (1643443461).

The spelling of 1320313230 in words is "one billion, three hundred twenty million, three hundred thirteen thousand, two hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 19 27 30 38 45 54 57 90 95 114 135 171 190 270 285 342 513 570 855 1026 1710 2565 5130 257371 514742 772113 1286855 1544226 2316339 2573710 3860565 4632678 4890049 6949017 7721130 9780098 11581695 13898034 14670147 23163390 24450245 29340294 34745085 44010441 48900490 69490170 73350735 88020882 132031323 146701470 220052205 264062646 440104410 660156615 1320313230