Search a number
-
+
1555124130 = 2335717291669
BaseRepresentation
bin101110010110001…
…0100111110100010
311000101020111021000
41130230110332202
511141102433010
6414151412430
753352223410
oct13454247642
94011214230
101555124130
1172891085a
12374984116
131ba252ac1
1410a7722b0
15917d77c0
hex5cb14fa2

1555124130 has 256 divisors, whose sum is σ = 5194368000. Its totient is φ = 322818048.

The previous prime is 1555124119. The next prime is 1555124149. The reversal of 1555124130 is 314215551.

1555124130 is a `hidden beast` number, since 15 + 5 + 512 + 4 + 130 = 666.

1555124130 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×15551241302 = 4836822119416513800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1555124094 and 1555124103.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 930936 + ... + 932604.

It is an arithmetic number, because the mean of its divisors is an integer number (20290500).

Almost surely, 21555124130 is an apocalyptic number.

1555124130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1555124130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2597184000).

1555124130 is an abundant number, since it is smaller than the sum of its proper divisors (3639243870).

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

1555124130 is a wasteful number, since it uses less digits than its factorization.

1555124130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1738 (or 1732 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 27.

The square root of 1555124130 is about 39435.0621908981. The cubic root of 1555124130 is about 1158.5684207678.

Adding to 1555124130 its reverse (314215551), we get a palindrome (1869339681).

The spelling of 1555124130 in words is "one billion, five hundred fifty-five million, one hundred twenty-four thousand, one hundred thirty".