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245230000 = 2454137179
BaseRepresentation
bin11101001110111…
…10100110110000
3122002102222022121
432213132212300
51000234330000
640200044024
76035264161
oct1647364660
9562388277
10245230000
11116475a24
126a163614
133ba62512
14247d7768
15167e0b1a
hexe9de9b0

245230000 has 100 divisors (see below), whose sum is σ = 601401240. Its totient is φ = 96832000.

The previous prime is 245229997. The next prime is 245230009. The reversal of 245230000 is 32542.

It is a tau number, because it is divible by the number of its divisors (100).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (245230009) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1369911 + ... + 1370089.

Almost surely, 2245230000 is an apocalyptic number.

245230000 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 245230000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (300700620).

245230000 is an abundant number, since it is smaller than the sum of its proper divisors (356171240).

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

245230000 is a wasteful number, since it uses less digits than its factorization.

245230000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344 (or 323 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 16.

The square root of 245230000 is about 15659.8211994901. The cubic root of 245230000 is about 625.9282207675.

Adding to 245230000 its reverse (32542), we get a palindrome (245262542).

The spelling of 245230000 in words is "two hundred forty-five million, two hundred thirty thousand".

Divisors: 1 2 4 5 8 10 16 20 25 40 50 80 100 125 137 179 200 250 274 358 400 500 548 625 685 716 895 1000 1096 1250 1370 1432 1790 2000 2192 2500 2740 2864 3425 3580 4475 5000 5480 6850 7160 8950 10000 10960 13700 14320 17125 17900 22375 24523 27400 34250 35800 44750 49046 54800 68500 71600 85625 89500 98092 111875 122615 137000 171250 179000 196184 223750 245230 274000 342500 358000 392368 447500 490460 613075 685000 895000 980920 1226150 1370000 1790000 1961840 2452300 3065375 4904600 6130750 9809200 12261500 15326875 24523000 30653750 49046000 61307500 122615000 245230000