Search a number
-
+
156513986370 = 233571931592383
BaseRepresentation
bin1001000111000011110…
…1011110011101000010
3112221222201200022022000
42101300331132131002
510031020040030440
6155522421524430
714210363635110
oct2216075363502
9487881608260
10156513986370
1160417079565
1226400273716
13119b3c89471
14780a956ab0
1541108e4730
hex2470f5e742

156513986370 has 512 divisors, whose sum is σ = 527302656000. Its totient is φ = 32229031680.

The previous prime is 156513986359. The next prime is 156513986371. The reversal of 156513986370 is 73689315651.

156513986370 is a `hidden beast` number, since 1 + 5 + 6 + 513 + 98 + 6 + 37 + 0 = 666.

156513986370 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 (156513986371) 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 255 ways as a sum of consecutive naturals, for example, 65678199 + ... + 65680581.

It is an arithmetic number, because the mean of its divisors is an integer number (1029888000).

Almost surely, 2156513986370 is an apocalyptic number.

156513986370 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 156513986370, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (263651328000).

156513986370 is an abundant number, since it is smaller than the sum of its proper divisors (370788669630).

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

156513986370 is a wasteful number, since it uses less digits than its factorization.

156513986370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2515 (or 2509 counting only the distinct ones).

The product of its (nonzero) digits is 4082400, while the sum is 54.

The spelling of 156513986370 in words is "one hundred fifty-six billion, five hundred thirteen million, nine hundred eighty-six thousand, three hundred seventy".