Base | Representation |
---|---|
bin | 100000001111101… |
… | …1000110111101010 |
3 | 2210101220210000200 |
4 | 1000133120313222 |
5 | 4203441021104 |
6 | 255210213030 |
7 | 35545410636 |
oct | 10037306752 |
9 | 2711823020 |
10 | 1081970154 |
11 | 505820211 |
12 | 262424176 |
13 | 14320a235 |
14 | a39a7dc6 |
15 | 64ec3b39 |
hex | 407d8dea |
1081970154 has 24 divisors (see below), whose sum is σ = 2357372160. Its totient is φ = 358640808.
The previous prime is 1081970147. The next prime is 1081970161. The reversal of 1081970154 is 4510791801.
1081970154 is digitally balanced in base 4, 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 (1081970147) and next prime (1081970161).
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 164682 + ... + 171125.
It is an arithmetic number, because the mean of its divisors is an integer number (98223840).
Almost surely, 21081970154 is an apocalyptic number.
1081970154 is an abundant number, since it is smaller than the sum of its proper divisors (1275402006).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1081970154 is a wasteful number, since it uses less digits than its factorization.
1081970154 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 335994 (or 335991 counting only the distinct ones).
The product of its (nonzero) digits is 10080, while the sum is 36.
The square root of 1081970154 is about 32893.3147311122. The cubic root of 1081970154 is about 1026.6090623543.
The spelling of 1081970154 in words is "one billion, eighty-one million, nine hundred seventy thousand, one hundred fifty-four".
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