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43742923159 = 1317197931779
BaseRepresentation
bin101000101111010010…
…000000100110010111
311011220112000201211011
4220233102000212113
51204041142020114
632032322353051
73105663466135
oct505722004627
9134815021734
1043742923159
1117607815671
1285894bb787
1341816543b0
14218d722755
1512103cb1c4
hexa2f480997

43742923159 has 8 divisors (see below), whose sum is σ = 49878808560. Its totient is φ = 38002901376.

The previous prime is 43742923157. The next prime is 43742923163. The reversal of 43742923159 is 95132924734.

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 43742923159 - 21 = 43742923157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43742923151) 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, 98965669 + ... + 98966110.

It is an arithmetic number, because the mean of its divisors is an integer number (6234851070).

Almost surely, 243742923159 is an apocalyptic number.

43742923159 is a deficient number, since it is larger than the sum of its proper divisors (6135885401).

43742923159 is a wasteful number, since it uses less digits than its factorization.

43742923159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197931809.

The product of its digits is 1632960, while the sum is 49.

The spelling of 43742923159 in words is "forty-three billion, seven hundred forty-two million, nine hundred twenty-three thousand, one hundred fifty-nine".

Divisors: 1 13 17 221 197931779 2573113127 3364840243 43742923159