| Base | Representation |
|---|---|
| bin | 11100111101110100… |
| … | …00011010101000000 |
| 3 | 1111010202210120212000 |
| 4 | 32132322003111000 |
| 5 | 223322013420000 |
| 6 | 11051034104000 |
| 7 | 1060236432120 |
| oct | 163672032500 |
| 9 | 44122716760 |
| 10 | 15550920000 |
| 11 | 66600a8400 |
| 12 | 301bb7b000 |
| 13 | 160aa1c215 |
| 14 | a77472c80 |
| 15 | 61038a000 |
| hex | 39ee83540 |
15550920000 has 1680 divisors, whose sum is σ = 75985176960. Its totient is φ = 3041280000.
The previous prime is 15550919963. The next prime is 15550920001. The reversal of 15550920000 is 2905551.
15550920000 is a `hidden beast` number, since 155 + 509 + 2 + 0 + 0 + 0 + 0 = 666.
It is a tau number, because it is divible by the number of its divisors (1680).
It is a super-2 number, since 2×155509200002 (a number of 21 digits) contains 22 as substring.
It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.
It is a Harshad number since it is a multiple of its sum of digits (27).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (15550920001) by changing a digit.
It is a polite number, since it can be written in 239 ways as a sum of consecutive naturals, for example, 914759992 + ... + 914760008.
It is an arithmetic number, because the mean of its divisors is an integer number (45229272).
Almost surely, 215550920000 is an apocalyptic number.
15550920000 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 15550920000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37992588480).
15550920000 is an abundant number, since it is smaller than the sum of its proper divisors (60434256960).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
15550920000 is a wasteful number, since it uses less digits than its factorization.
15550920000 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 87 (or 45 counting only the distinct ones).
The product of its (nonzero) digits is 2250, while the sum is 27.
The spelling of 15550920000 in words is "fifteen billion, five hundred fifty million, nine hundred twenty thousand".
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