| Base | Representation |
|---|---|
| bin | 10010000110101… |
| … | …11101001100000 |
| 3 | 101120210012210000 |
| 4 | 21003113221200 |
| 5 | 302340100430 |
| 6 | 23023140000 |
| 7 | 3522641463 |
| oct | 1103275140 |
| 9 | 346705700 |
| 10 | 151878240 |
| 11 | 78805408 |
| 12 | 42a44600 |
| 13 | 25608aa7 |
| 14 | 162572da |
| 15 | d500e60 |
| hex | 90d7a60 |
151878240 has 120 divisors (see below), whose sum is σ = 536049360. Its totient is φ = 40497408.
The previous prime is 151878239. The next prime is 151878241. The reversal of 151878240 is 42878151.
It is an interprime number because it is at equal distance from previous prime (151878239) and next prime (151878241).
It is a tau number, because it is divible by the number of its divisors (120).
It is a Harshad number since it is a multiple of its sum of digits (36).
It is a junction number, because it is equal to n+sod(n) for n = 151878195 and 151878204.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (151878241) by changing a digit.
It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 7101 + ... + 18819.
It is an arithmetic number, because the mean of its divisors is an integer number (4467078).
Almost surely, 2151878240 is an apocalyptic number.
151878240 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 151878240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (268024680).
151878240 is an abundant number, since it is smaller than the sum of its proper divisors (384171120).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
151878240 is a wasteful number, since it uses less digits than its factorization.
151878240 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 11746 (or 11729 counting only the distinct ones).
The product of its (nonzero) digits is 17920, while the sum is 36.
The square root of 151878240 is about 12323.8889965790. Note that the first 3 decimals coincide. The cubic root of 151878240 is about 533.5377896661.
The spelling of 151878240 in words is "one hundred fifty-one million, eight hundred seventy-eight thousand, two hundred forty".
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