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10102100201 = 11789856909
BaseRepresentation
bin10010110100010000…
…11101000011101001
3222002000212212021022
421122020131003221
5131142114201301
64350231022225
7505224302114
oct113210350351
928060785238
1010102100201
114314410446
121b5b20a975
13c4cbb7bab
146bb93d57b
153e1d29d1b
hex25a21d0e9

10102100201 has 4 divisors (see below), whose sum is σ = 10102968900. Its totient is φ = 10101231504.

The previous prime is 10102100189. The next prime is 10102100251. The reversal of 10102100201 is 10200120101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10200120101 = 13973382159.

It can be written as a sum of positive squares in 2 ways, for example, as 1907505625 + 8194594576 = 43675^2 + 90524^2 .

It is a cyclic number.

It is not a de Polignac number, because 10102100201 - 26 = 10102100137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10102100251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 416666 + ... + 440243.

It is an arithmetic number, because the mean of its divisors is an integer number (2525742225).

Almost surely, 210102100201 is an apocalyptic number.

It is an amenable number.

10102100201 is a deficient number, since it is larger than the sum of its proper divisors (868699).

10102100201 is an equidigital number, since it uses as much as digits as its factorization.

10102100201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 868698.

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 10102100201 its reverse (10200120101), we get a palindrome (20302220302).

The spelling of 10102100201 in words is "ten billion, one hundred two million, one hundred thousand, two hundred one".

Divisors: 1 11789 856909 10102100201