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211231231014 = 23295711905717
BaseRepresentation
bin1100010010111001011…
…1001100110000100110
3202012020001211100001110
43010232113030300212
511430100143343024
6241012134205450
721155335560516
oct3045627146046
9665201740043
10211231231014
1181645583301
1234b30ab3886
1316bc41171bb
14a31b983846
15576448b629
hex312e5ccc26

211231231014 has 16 divisors (see below), whose sum is σ = 422605366128. Its totient is φ = 70386592992.

The previous prime is 211231231007. The next prime is 211231231021. The reversal of 211231231014 is 410132132112.

It is an interprime number because it is at equal distance from previous prime (211231231007) and next prime (211231231021).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5935117 + ... + 5970600.

It is an arithmetic number, because the mean of its divisors is an integer number (26412835383).

Almost surely, 2211231231014 is an apocalyptic number.

211231231014 is an abundant number, since it is smaller than the sum of its proper divisors (211374135114).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

211231231014 is a wasteful number, since it uses less digits than its factorization.

211231231014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11908679.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 211231231014 its reverse (410132132112), we get a palindrome (621363363126).

The spelling of 211231231014 in words is "two hundred eleven billion, two hundred thirty-one million, two hundred thirty-one thousand, fourteen".

Divisors: 1 2 3 6 2957 5914 8871 17742 11905717 23811434 35717151 71434302 35205205169 70410410338 105615615507 211231231014