| Base | Representation |
|---|---|
| bin | 10010101101110… |
| … | …00100101111000 |
| 3 | 101221102010011100 |
| 4 | 21112320211320 |
| 5 | 310142301122 |
| 6 | 23324531400 |
| 7 | 3614266125 |
| oct | 1126704570 |
| 9 | 357363140 |
| 10 | 156993912 |
| 11 | 80689939 |
| 12 | 446b0b60 |
| 13 | 266aa40a |
| 14 | 16bc974c |
| 15 | dbb1aac |
| hex | 95b8978 |
156993912 has 96 divisors (see below), whose sum is σ = 459950400. Its totient is φ = 48187392.
The previous prime is 156993911. The next prime is 156993913. The reversal of 156993912 is 219399651.
It is a happy number.
156993912 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is an interprime number because it is at equal distance from previous prime (156993911) and next prime (156993913).
It is a super-3 number, since 3×1569939123 (a number of 26 digits) contains 333 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (156993911) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 56164 + ... + 58892.
It is an arithmetic number, because the mean of its divisors is an integer number (4791150).
Almost surely, 2156993912 is an apocalyptic number.
156993912 is a gapful number since it is divisible by the number (12) 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 156993912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (229975200).
156993912 is an abundant number, since it is smaller than the sum of its proper divisors (302956488).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
156993912 is a wasteful number, since it uses less digits than its factorization.
156993912 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2805 (or 2798 counting only the distinct ones).
The product of its digits is 131220, while the sum is 45.
The square root of 156993912 is about 12529.7211461389. The cubic root of 156993912 is about 539.4620981108.
It can be divided in two parts, 1569 and 93912, that added together give a square (95481 = 3092).
The spelling of 156993912 in words is "one hundred fifty-six million, nine hundred ninety-three thousand, nine hundred twelve".
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