Search a number
-
+
15145306423 = 137338341669
BaseRepresentation
bin11100001101011101…
…10000100100110111
31110002111120021121221
432012232300210313
5222004144301143
610542504251211
71044212660212
oct160656604467
943074507557
1015145306423
116472148975
122b28170b07
1315749937a0
14a3964a779
155d99682ed
hex386bb0937

15145306423 has 16 divisors (see below), whose sum is σ = 16577326080. Its totient is φ = 13752440064.

The previous prime is 15145306417. The next prime is 15145306433. The reversal of 15145306423 is 32460354151.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-15145306423 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 (15145306433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 342633 + ... + 384301.

It is an arithmetic number, because the mean of its divisors is an integer number (1036082880).

Almost surely, 215145306423 is an apocalyptic number.

15145306423 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

15145306423 is a deficient number, since it is larger than the sum of its proper divisors (1432019657).

15145306423 is a wasteful number, since it uses less digits than its factorization.

15145306423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42138.

The product of its (nonzero) digits is 43200, while the sum is 34.

The spelling of 15145306423 in words is "fifteen billion, one hundred forty-five million, three hundred six thousand, four hundred twenty-three".

Divisors: 1 13 73 383 949 4979 27959 41669 363467 541697 3041837 15959227 39543881 207469951 1165023571 15145306423