Search a number
-
+
20250557160 = 2335168754643
BaseRepresentation
bin10010110111000001…
…101111101011101000
31221021021222220001120
4102313001233223220
5312433120312120
613145235415240
71314553616151
oct226701575350
957237886046
1020250557160
118651a03359
123b11a54520
131ba9583b02
14da16a8928
157d7c60140
hex4b706fae8

20250557160 has 32 divisors (see below), whose sum is σ = 60751671840. Its totient is φ = 5400148544.

The previous prime is 20250557147. The next prime is 20250557179. The reversal of 20250557160 is 6175505202.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84377202 + ... + 84377441.

It is an arithmetic number, because the mean of its divisors is an integer number (1898489745).

Almost surely, 220250557160 is an apocalyptic number.

20250557160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20250557160 is an abundant number, since it is smaller than the sum of its proper divisors (40501114680).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20250557160 is a wasteful number, since it uses less digits than its factorization.

20250557160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168754657 (or 168754653 counting only the distinct ones).

The product of its (nonzero) digits is 21000, while the sum is 33.

The spelling of 20250557160 in words is "twenty billion, two hundred fifty million, five hundred fifty-seven thousand, one hundred sixty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 120 168754643 337509286 506263929 675018572 843773215 1012527858 1350037144 1687546430 2025055716 2531319645 3375092860 4050111432 5062639290 6750185720 10125278580 20250557160