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1230200098 = 2615100049
BaseRepresentation
bin100100101010011…
…0101110100100010
310011201211122021121
41021110311310202
510004412400343
6322023242454
742325346131
oct11124656442
93151748247
101230200098
115814635a6
122a3ba942a
13167b3956a
14b9551918
1573003aed
hex49535d22

1230200098 has 4 divisors (see below), whose sum is σ = 1845300150. Its totient is φ = 615100048.

The previous prime is 1230200093. The next prime is 1230200129. The reversal of 1230200098 is 8900020321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8900020321 = 13036830407.

It can be written as a sum of positive squares in only one way, i.e., 1214731609 + 15468489 = 34853^2 + 3933^2 .

It is a super-2 number, since 2×12302000982 = 3026784562238419208, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1230200093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 307550023 + ... + 307550026.

Almost surely, 21230200098 is an apocalyptic number.

1230200098 is a deficient number, since it is larger than the sum of its proper divisors (615100052).

1230200098 is an equidigital number, since it uses as much as digits as its factorization.

1230200098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 615100051.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 1230200098 is about 35074.2084443826. The cubic root of 1230200098 is about 1071.4993676936.

The spelling of 1230200098 in words is "one billion, two hundred thirty million, two hundred thousand, ninety-eight".

Divisors: 1 2 615100049 1230200098