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245087480 = 23511557017
BaseRepresentation
bin11101001101110…
…11110011111000
3122002011201211002
432212323303320
51000220244410
640153024132
76034131521
oct1646736370
9562151732
10245087480
11116388940
126a0b5048
133ba126a1
142479b848
15167b37a5
hexe9bbcf8

245087480 has 32 divisors (see below), whose sum is σ = 601579440. Its totient is φ = 89122560.

The previous prime is 245087477. The next prime is 245087489. The reversal of 245087480 is 84780542.

245087480 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245087489) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 278069 + ... + 278948.

Almost surely, 2245087480 is an apocalyptic number.

245087480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

245087480 is an abundant number, since it is smaller than the sum of its proper divisors (356491960).

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

245087480 is a wasteful number, since it uses less digits than its factorization.

245087480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 557039 (or 557035 counting only the distinct ones).

The product of its (nonzero) digits is 71680, while the sum is 38.

The square root of 245087480 is about 15655.2700391913. The cubic root of 245087480 is about 625.8069406398.

The spelling of 245087480 in words is "two hundred forty-five million, eighty-seven thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 11 20 22 40 44 55 88 110 220 440 557017 1114034 2228068 2785085 4456136 5570170 6127187 11140340 12254374 22280680 24508748 30635935 49017496 61271870 122543740 245087480