Search a number
-
+
542220817217 = 12831773723827
BaseRepresentation
bin1111110001111101110…
…00010001001101000001
31220211120022010110020112
413320332320101031001
532340432012122332
61053032013521105
754113510621042
oct7707670211501
91824508113215
10542220817217
11199a55574372
12891047a3195
133c192340061
141c35a72a8c9
15e187599db2
hex7e3ee11341

542220817217 has 8 divisors (see below), whose sum is σ = 542696806176. Its totient is φ = 541744913952.

The previous prime is 542220817207. The next prime is 542220817219. The reversal of 542220817217 is 712718022245.

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

It is a cyclic number.

It is not a de Polignac number, because 542220817217 - 214 = 542220800833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (542220817219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22744658 + ... + 22768484.

It is an arithmetic number, because the mean of its divisors is an integer number (67837100772).

Almost surely, 2542220817217 is an apocalyptic number.

It is an amenable number.

542220817217 is a deficient number, since it is larger than the sum of its proper divisors (475988959).

542220817217 is a wasteful number, since it uses less digits than its factorization.

542220817217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42847.

The product of its (nonzero) digits is 125440, while the sum is 41.

The spelling of 542220817217 in words is "five hundred forty-two billion, two hundred twenty million, eight hundred seventeen thousand, two hundred seventeen".

Divisors: 1 1283 17737 23827 22756571 30570041 422619499 542220817217