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100203101210 = 2510020310121
BaseRepresentation
bin101110101010010010…
…0011111110000011010
3100120122022210221201202
41131110210133300122
53120203443214320
6114011020114202
710145061210212
oct1352444376032
9316568727652
10100203101210
1139550047043
1217505995962
1395ab911484
144bc800d242
152916ea7b75
hex175491fc1a

100203101210 has 8 divisors (see below), whose sum is σ = 180365582196. Its totient is φ = 40081240480.

The previous prime is 100203101191. The next prime is 100203101231. The reversal of 100203101210 is 12101302001.

It can be written as a sum of positive squares in 2 ways, for example, as 95832965761 + 4370135449 = 309569^2 + 66107^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1002031012102 (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 100203101191 and 100203101200.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5010155051 + ... + 5010155070.

Almost surely, 2100203101210 is an apocalyptic number.

100203101210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100203101210 is a deficient number, since it is larger than the sum of its proper divisors (80162480986).

100203101210 is a wasteful number, since it uses less digits than its factorization.

100203101210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10020310128.

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 100203101210 its reverse (12101302001), we get a palindrome (112304403211).

The spelling of 100203101210 in words is "one hundred billion, two hundred three million, one hundred one thousand, two hundred ten".

Divisors: 1 2 5 10 10020310121 20040620242 50101550605 100203101210