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10020203122 = 25010101561
BaseRepresentation
bin10010101010100000…
…00010101001110010
3221212022210001121011
421111100002221302
5131010132444442
64334143421134
7503211215116
oct112520025162
927768701534
1010020203122
114282163a06
121b378b47aa
13c38c42197
146b0b01746
153d9a4e117
hex255402a72

10020203122 has 4 divisors (see below), whose sum is σ = 15030304686. Its totient is φ = 5010101560.

The previous prime is 10020203119. The next prime is 10020203173. The reversal of 10020203122 is 22130202001.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 9892490521 + 127712601 = 99461^2 + 11301^2 .

It is a super-2 number, since 2×100202031222 (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2505050779 + ... + 2505050782.

Almost surely, 210020203122 is an apocalyptic number.

10020203122 is a deficient number, since it is larger than the sum of its proper divisors (5010101564).

10020203122 is an equidigital number, since it uses as much as digits as its factorization.

10020203122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5010101563.

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 10020203122 its reverse (22130202001), we get a palindrome (32150405123).

The spelling of 10020203122 in words is "ten billion, twenty million, two hundred three thousand, one hundred twenty-two".

Divisors: 1 2 5010101561 10020203122