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245140480 = 21051329127
BaseRepresentation
bin11101001110010…
…00110000000000
3122002021102112001
432213020300000
51000223443410
640154113344
76034442164
oct1647106000
9562242461
10245140480
11116414742
126a11b854
133ba30850
14247b2ca4
15167c433a
hexe9c8c00

245140480 has 176 divisors, whose sum is σ = 660280320. Its totient is φ = 86704128.

The previous prime is 245140477. The next prime is 245140487. The reversal of 245140480 is 84041542.

245140480 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (245140487) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1930177 + ... + 1930303.

Almost surely, 2245140480 is an apocalyptic number.

245140480 is a gapful number since it is divisible by the number (20) 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 245140480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (330140160).

245140480 is an abundant number, since it is smaller than the sum of its proper divisors (415139840).

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

245140480 is a wasteful number, since it uses less digits than its factorization.

245140480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194 (or 176 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 28.

The square root of 245140480 is about 15656.9626684105. The cubic root of 245140480 is about 625.8520474963.

The spelling of 245140480 in words is "two hundred forty-five million, one hundred forty thousand, four hundred eighty".