| Base | Representation |
|---|---|
| bin | 101110001110010… |
| … | …0110000111000000 |
| 3 | 11000002110222000110 |
| 4 | 1130130212013000 |
| 5 | 11134024000000 |
| 6 | 413523151320 |
| 7 | 53302165614 |
| oct | 13434460700 |
| 9 | 4002428013 |
| 10 | 1551000000 |
| 11 | 726554290 |
| 12 | 373515540 |
| 13 | 1b943a8a4 |
| 14 | 109dbb344 |
| 15 | 91270850 |
| hex | 5c7261c0 |
1551000000 has 392 divisors, whose sum is σ = 5714926848. Its totient is φ = 368000000.
The previous prime is 1550999987. The next prime is 1551000019. The reversal of 1551000000 is 1551.
It is a Harshad number since it is a multiple of its sum of digits (12).
It is a self number, because there is not a number n which added to its sum of digits gives 1551000000.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 32999977 + ... + 33000023.
Almost surely, 21551000000 is an apocalyptic number.
1551000000 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 1551000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2857463424).
1551000000 is an abundant number, since it is smaller than the sum of its proper divisors (4163926848).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1551000000 is an frugal number, since it uses more digits than its factorization.
1551000000 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 103 (or 68 counting only the distinct ones).
The product of its (nonzero) digits is 25, while the sum is 12.
The square root of 1551000000 is about 39382.7373350304. The cubic root of 1551000000 is about 1157.5433543029.
Adding to 1551000000 its reverse (1551), we get a palindrome (1551001551).
Multiplying 1551000000 by its reverse (1551), we get a square (2405601000000 = 15510002).
1551000000 divided by its reverse (1551) gives a 6-th power (1000000 = 106).
It can be divided in two parts, 15 and 51000000, that added together give a palindrome (51000015).
The spelling of 1551000000 in words is "one billion, five hundred fifty-one million", and thus it is an aban number.
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