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245214340 = 22573156501
BaseRepresentation
bin11101001110110…
…10110010000100
3122002102011211121
432213122302010
51000233324330
640155443324
76035200420
oct1647326204
9562364747
10245214340
11116465188
126a156544
133ba58357
14247d1b80
15167db17a
hexe9dac84

245214340 has 48 divisors (see below), whose sum is σ = 607509504. Its totient is φ = 81360000.

The previous prime is 245214331. The next prime is 245214349. The reversal of 245214340 is 43412542.

It is a happy number.

245214340 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (245214331) and next prime (245214349).

It is not an unprimeable number, because it can be changed into a prime (245214349) 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, 23911 + ... + 32590.

It is an arithmetic number, because the mean of its divisors is an integer number (12656448).

Almost surely, 2245214340 is an apocalyptic number.

245214340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

245214340 is an abundant number, since it is smaller than the sum of its proper divisors (362295164).

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

245214340 is a wasteful number, since it uses less digits than its factorization.

245214340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56548 (or 56546 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 245214340 is about 15659.3211857986. The cubic root of 245214340 is about 625.9148968884.

Adding to 245214340 its reverse (43412542), we get a palindrome (288626882).

The spelling of 245214340 in words is "two hundred forty-five million, two hundred fourteen thousand, three hundred forty".

Divisors: 1 2 4 5 7 10 14 20 28 31 35 62 70 124 140 155 217 310 434 620 868 1085 2170 4340 56501 113002 226004 282505 395507 565010 791014 1130020 1582028 1751531 1977535 3503062 3955070 7006124 7910140 8757655 12260717 17515310 24521434 35030620 49042868 61303585 122607170 245214340