Search a number
-
+
156013388388 = 22331113312291423
BaseRepresentation
bin1001000101001100011…
…1110110001001100100
3112220200211201021222000
42101103013312021210
510024003411412023
6155401020205300
714162104630554
oct2212307661144
9486624637860
10156013388388
116018a543920
12262a0699830
1311934355140
1477a0287164
1540d19ae243
hex24531f6264

156013388388 has 384 divisors, whose sum is σ = 493009305600. Its totient is φ = 42018393600.

The previous prime is 156013388387. The next prime is 156013388389. The reversal of 156013388388 is 883883310651.

156013388388 is a `hidden beast` number, since 1 + 56 + 0 + 133 + 88 + 388 = 666.

It is an interprime number because it is at equal distance from previous prime (156013388387) and next prime (156013388389).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (156013388381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 109636245 + ... + 109637667.

It is an arithmetic number, because the mean of its divisors is an integer number (1283878400).

Almost surely, 2156013388388 is an apocalyptic number.

156013388388 is a gapful number since it is divisible by the number (18) 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 156013388388, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (246504652800).

156013388388 is an abundant number, since it is smaller than the sum of its proper divisors (336995917212).

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

156013388388 is a wasteful number, since it uses less digits than its factorization.

156013388388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1720 (or 1712 counting only the distinct ones).

The product of its (nonzero) digits is 3317760, while the sum is 54.

The spelling of 156013388388 in words is "one hundred fifty-six billion, thirteen million, three hundred eighty-eight thousand, three hundred eighty-eight".