Search a number
-
+
1230214040 = 235117733617
BaseRepresentation
bin100100101010011…
…1001001110011000
310011201212100101222
41021110321032120
510004413322130
6322023431212
742325434566
oct11124711630
93151770358
101230214040
11581473020
122a3bb5508
13167b42a03
14b9556a36
1573007ce5
hex49539398

1230214040 has 64 divisors (see below), whose sum is σ = 3024358560. Its totient is φ = 446648320.

The previous prime is 1230214019. The next prime is 1230214067. The reversal of 1230214040 is 404120321.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 338312 + ... + 341928.

Almost surely, 21230214040 is an apocalyptic number.

1230214040 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 1230214040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1512179280).

1230214040 is an abundant number, since it is smaller than the sum of its proper divisors (1794144520).

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

1230214040 is a wasteful number, since it uses less digits than its factorization.

1230214040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4412 (or 4408 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 1230214040 is about 35074.4071938500. The cubic root of 1230214040 is about 1071.5034154870.

Adding to 1230214040 its reverse (404120321), we get a palindrome (1634334361).

The spelling of 1230214040 in words is "one billion, two hundred thirty million, two hundred fourteen thousand, forty".

Divisors: 1 2 4 5 8 10 11 20 22 40 44 55 88 110 220 440 773 1546 3092 3617 3865 6184 7234 7730 8503 14468 15460 17006 18085 28936 30920 34012 36170 39787 42515 68024 72340 79574 85030 144680 159148 170060 198935 318296 340120 397870 795740 1591480 2795941 5591882 11183764 13979705 22367528 27959410 30755351 55918820 61510702 111837640 123021404 153776755 246042808 307553510 615107020 1230214040