Base | Representation |
---|---|
bin | 10010001111001… |
… | …11000010000110 |
3 | 101122212200121000 |
4 | 21013213002012 |
5 | 303131133310 |
6 | 23103034130 |
7 | 3535251330 |
oct | 1107470206 |
9 | 348780530 |
10 | 152989830 |
11 | 793a4584 |
12 | 4329b946 |
13 | 25907a36 |
14 | 16466450 |
15 | d6704c0 |
hex | 91e7086 |
152989830 has 128 divisors (see below), whose sum is σ = 474255360. Its totient is φ = 34369920.
The previous prime is 152989801. The next prime is 152989831. The reversal of 152989830 is 38989251.
It is a happy number.
152989830 is a `hidden beast` number, since 1 + 529 + 8 + 98 + 30 = 666.
152989830 is digitally balanced in base 3, 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 (45).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (152989831) by changing a digit.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 114627 + ... + 115953.
It is an arithmetic number, because the mean of its divisors is an integer number (3705120).
Almost surely, 2152989830 is an apocalyptic number.
152989830 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 152989830, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (237127680).
152989830 is an abundant number, since it is smaller than the sum of its proper divisors (321265530).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
152989830 is a wasteful number, since it uses less digits than its factorization.
152989830 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1411 (or 1405 counting only the distinct ones).
The product of its (nonzero) digits is 155520, while the sum is 45.
The square root of 152989830 is about 12368.9057721368. The cubic root of 152989830 is about 534.8362733049.
The spelling of 152989830 in words is "one hundred fifty-two million, nine hundred eighty-nine thousand, eight hundred thirty".
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