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1230200200 = 235210160901
BaseRepresentation
bin100100101010011…
…0101110110001000
310011201211122102101
41021110311312020
510004412401300
6322023243144
742325346335
oct11124656610
93151748371
101230200200
11581463689
122a3ba94b4
13167b39618
14b955198c
1573003b6a
hex49535d88

1230200200 has 48 divisors (see below), whose sum is σ = 2888581860. Its totient is φ = 487200000.

The previous prime is 1230200183. The next prime is 1230200243. The reversal of 1230200200 is 20020321.

It can be written as a sum of positive squares in 6 ways, for example, as 332478756 + 897721444 = 18234^2 + 29962^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10251 + ... + 50650.

Almost surely, 21230200200 is an apocalyptic number.

1230200200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1230200200 is an abundant number, since it is smaller than the sum of its proper divisors (1658381660).

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

1230200200 is a wasteful number, since it uses less digits than its factorization.

1230200200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61018 (or 61009 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 1230200200 is about 35074.2098984425. The cubic root of 1230200200 is about 1071.4993973074.

Adding to 1230200200 its reverse (20020321), we get a palindrome (1250220521).

The spelling of 1230200200 in words is "one billion, two hundred thirty million, two hundred thousand, two hundred".

Divisors: 1 2 4 5 8 10 20 25 40 50 100 101 200 202 404 505 808 1010 2020 2525 4040 5050 10100 20200 60901 121802 243604 304505 487208 609010 1218020 1522525 2436040 3045050 6090100 6151001 12180200 12302002 24604004 30755005 49208008 61510010 123020020 153775025 246040040 307550050 615100100 1230200200