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214730145279 = 32132379795669
BaseRepresentation
bin1100011111111011101…
…0011111110111111111
3202112020220122121002200
43013332322133313333
512004231404122104
6242351244122543
721341133055656
oct3077672376777
9675226577080
10214730145279
1183080629391
1235748836453
1317330c93580
14a57053c19d
1558bb731b39
hex31fee9fdff

214730145279 has 24 divisors (see below), whose sum is σ = 348547486560. Its totient is φ = 126396338112.

The previous prime is 214730145277. The next prime is 214730145299. The reversal of 214730145279 is 972541037412.

It is not a de Polignac number, because 214730145279 - 21 = 214730145277 is a prime.

It is a super-2 number, since 2×2147301452792 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214730145277) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39895144 + ... + 39900525.

It is an arithmetic number, because the mean of its divisors is an integer number (14522811940).

Almost surely, 2214730145279 is an apocalyptic number.

214730145279 is a deficient number, since it is larger than the sum of its proper divisors (133817341281).

214730145279 is a wasteful number, since it uses less digits than its factorization.

214730145279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79795711 (or 79795708 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 45.

The spelling of 214730145279 in words is "two hundred fourteen billion, seven hundred thirty million, one hundred forty-five thousand, two hundred seventy-nine".

Divisors: 1 3 9 13 23 39 69 117 207 299 897 2691 79795669 239387007 718161021 1037343697 1835300387 3112031091 5505901161 9336093273 16517703483 23858905031 71576715093 214730145279