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10212105854 = 25941985933
BaseRepresentation
bin10011000001011000…
…00101111001111110
3222100200212201122202
421200230011321332
5131403244341404
64405200511502
7511031316236
oct114054057176
928320781582
1010212105854
114370516305
121b9001b592
13c699229b2
146cc3b6cc6
153eb80921e
hex260b05e7e

10212105854 has 8 divisors (see below), whose sum is σ = 15318594840. Its totient is φ = 5105907576.

The previous prime is 10212105851. The next prime is 10212105979. The reversal of 10212105854 is 45850121201.

10212105854 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10212105851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75872 + ... + 161804.

It is an arithmetic number, because the mean of its divisors is an integer number (1914824355).

Almost surely, 210212105854 is an apocalyptic number.

10212105854 is a deficient number, since it is larger than the sum of its proper divisors (5106488986).

10212105854 is an equidigital number, since it uses as much as digits as its factorization.

10212105854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145354.

The product of its (nonzero) digits is 3200, while the sum is 29.

The spelling of 10212105854 in words is "ten billion, two hundred twelve million, one hundred five thousand, eight hundred fifty-four".

Divisors: 1 2 59419 85933 118838 171866 5106052927 10212105854