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211202102071 = 17191374772821
BaseRepresentation
bin1100010010110010100…
…0000101001100110111
3202012011001000102122201
43010230220011030313
511430020214231241
6241005214005331
721154533150502
oct3045450051467
9665131012581
10211202102071
11816300982a4
1234b231a6847
1316bbb08883c
14a317b60139
155761b35931
hex312ca05337

211202102071 has 16 divisors (see below), whose sum is σ = 237113796960. Its totient is φ = 186941813760.

The previous prime is 211202102051. The next prime is 211202102101. The reversal of 211202102071 is 170201202112.

It is not a de Polignac number, because 211202102071 - 217 = 211201970999 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211202102051) 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 15 ways as a sum of consecutive naturals, for example, 2342160 + ... + 2430661.

It is an arithmetic number, because the mean of its divisors is an integer number (14819612310).

Almost surely, 2211202102071 is an apocalyptic number.

211202102071 is a deficient number, since it is larger than the sum of its proper divisors (25911694889).

211202102071 is a wasteful number, since it uses less digits than its factorization.

211202102071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4772994.

The product of its (nonzero) digits is 112, while the sum is 19.

Adding to 211202102071 its reverse (170201202112), we get a palindrome (381403304183).

The spelling of 211202102071 in words is "two hundred eleven billion, two hundred two million, one hundred two thousand, seventy-one".

Divisors: 1 17 19 137 323 2329 2603 44251 4772821 81137957 90683599 653876477 1541621183 11115900109 12423653063 211202102071