Base | Representation |
---|---|
bin | 10010101100001… |
… | …10100100100110 |
3 | 101221000201010010 |
4 | 21112012210212 |
5 | 310114222110 |
6 | 23320311050 |
7 | 3612453606 |
oct | 1126064446 |
9 | 357021103 |
10 | 156789030 |
11 | 80559a12 |
12 | 44612486 |
13 | 26638098 |
14 | 16b74c06 |
15 | db71020 |
hex | 9586926 |
156789030 has 16 divisors (see below), whose sum is σ = 376293744. Its totient is φ = 41810400.
The previous prime is 156789029. The next prime is 156789037. The reversal of 156789030 is 30987651.
It is a self number, because there is not a number n which added to its sum of digits gives 156789030.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (156789037) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2613121 + ... + 2613180.
It is an arithmetic number, because the mean of its divisors is an integer number (23518359).
Almost surely, 2156789030 is an apocalyptic number.
156789030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
156789030 is an abundant number, since it is smaller than the sum of its proper divisors (219504714).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
156789030 is a wasteful number, since it uses less digits than its factorization.
156789030 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5226311.
The product of its (nonzero) digits is 45360, while the sum is 39.
The square root of 156789030 is about 12521.5426365923. The cubic root of 156789030 is about 539.2273242756.
The spelling of 156789030 in words is "one hundred fifty-six million, seven hundred eighty-nine thousand, thirty".
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