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10211202102005 = 541349142724189
BaseRepresentation
bin1001010010010111101100…
…0100101111001011110101
31100011011220020020200101122
42110211323010233023311
52314300020214231010
633414543403033325
72102510051524652
oct224457304571365
940134806220348
1010211202102005
113287601421263
12118abbab0b845
13590bb2214008
14274320c8cc29
1512a93ba78855
hex9497b12f2f5

10211202102005 has 16 divisors (see below), whose sum is σ = 12588273558000. Its totient is φ = 7946882787840.

The previous prime is 10211202101999. The next prime is 10211202102091. The reversal of 10211202102005 is 50020120211201.

It can be written as a sum of positive squares in 8 ways, for example, as 1119825335524 + 9091376766481 = 1058218^2 + 3015191^2 .

It is a de Polignac number, because none of the positive numbers 2k-10211202102005 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71290550 + ... + 71433639.

It is an arithmetic number, because the mean of its divisors is an integer number (786767097375).

Almost surely, 210211202102005 is an apocalyptic number.

It is an amenable number.

10211202102005 is a deficient number, since it is larger than the sum of its proper divisors (2377071455995).

10211202102005 is a wasteful number, since it uses less digits than its factorization.

10211202102005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142724584.

The product of its (nonzero) digits is 80, while the sum is 17.

Adding to 10211202102005 its reverse (50020120211201), we get a palindrome (60231322313206).

The spelling of 10211202102005 in words is "ten trillion, two hundred eleven billion, two hundred two million, one hundred two thousand, five".

Divisors: 1 5 41 205 349 1745 14309 71545 142724189 713620945 5851691749 29258458745 49810741961 249053709805 2042240420401 10211202102005