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245140560 = 24335731523
BaseRepresentation
bin11101001110010…
…00110001010000
3122002021102122000
432213020301100
51000223444220
640154114000
76034442340
oct1647106120
9562242560
10245140560
11116414805
126a11b900
133ba308b2
14247b2d20
15167c4390
hexe9c8c50

245140560 has 320 divisors, whose sum is σ = 998031360. Its totient is φ = 54120960.

The previous prime is 245140547. The next prime is 245140573. The reversal of 245140560 is 65041542.

It is an interprime number because it is at equal distance from previous prime (245140547) and next prime (245140573).

It is a super-2 number, since 2×2451405602 = 120187788314227200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 468459 + ... + 468981.

It is an arithmetic number, because the mean of its divisors is an integer number (3118848).

Almost surely, 2245140560 is an apocalyptic number.

245140560 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 245140560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (499015680).

245140560 is an abundant number, since it is smaller than the sum of its proper divisors (752890800).

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

245140560 is a wasteful number, since it uses less digits than its factorization.

245140560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 583 (or 571 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 245140560 is about 15656.9652231842. The cubic root of 245140560 is about 625.8521155772.

The spelling of 245140560 in words is "two hundred forty-five million, one hundred forty thousand, five hundred sixty".