| Base | Representation |
|---|---|
| bin | 10010111010011… |
| … | …01110000000000 |
| 3 | 102001112102121100 |
| 4 | 21131031300000 |
| 5 | 311103402230 |
| 6 | 23424254400 |
| 7 | 3634350321 |
| oct | 1135156000 |
| 9 | 361472540 |
| 10 | 158653440 |
| 11 | 81612750 |
| 12 | 45171400 |
| 13 | 26b3b89a |
| 14 | 170dc448 |
| 15 | dddd660 |
| hex | 974dc00 |
158653440 has 264 divisors, whose sum is σ = 601621488. Its totient is φ = 38338560.
The previous prime is 158653361. The next prime is 158653441. The reversal of 158653440 is 44356851.
It is a happy number.
158653440 is a `hidden beast` number, since 1 + 5 + 86 + 534 + 40 = 666.
It is a tau number, because it is divible by the number of its divisors (264).
It is a Harshad number since it is a multiple of its sum of digits (36).
It is a nialpdrome in base 15.
It is a junction number, because it is equal to n+sod(n) for n = 158653395 and 158653404.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (158653441) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 506724 + ... + 507036.
Almost surely, 2158653440 is an apocalyptic number.
158653440 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 158653440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (300810744).
158653440 is an abundant number, since it is smaller than the sum of its proper divisors (442968048).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
158653440 is a wasteful number, since it uses less digits than its factorization.
158653440 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 355 (or 334 counting only the distinct ones).
The product of its (nonzero) digits is 57600, while the sum is 36.
The square root of 158653440 is about 12595.7707187770. The cubic root of 158653440 is about 541.3562615497.
The spelling of 158653440 in words is "one hundred fifty-eight million, six hundred fifty-three thousand, four hundred forty".
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