Search a number
-
+
138876515043 = 3747191736679
BaseRepresentation
bin1000000101010110101…
…1110111001011100011
3111021110112122221010020
42001111223313023203
54233404341440133
6143444325404523
713014326620650
oct2012553671343
9437415587106
10138876515043
1153996199282
1222ab9569743
1310132baa8b6
146a16338c27
15392c29c0b3
hex2055af72e3

138876515043 has 32 divisors (see below), whose sum is σ = 217255772160. Its totient is φ = 77262788640.

The previous prime is 138876514991. The next prime is 138876515047. The reversal of 138876515043 is 340515678831.

It is not a de Polignac number, because 138876515043 - 28 = 138876514787 is a prime.

It is not an unprimeable number, because it can be changed into a prime (138876515047) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 179823 + ... + 556856.

It is an arithmetic number, because the mean of its divisors is an integer number (6789242880).

Almost surely, 2138876515043 is an apocalyptic number.

138876515043 is a deficient number, since it is larger than the sum of its proper divisors (78379257117).

138876515043 is a wasteful number, since it uses less digits than its factorization.

138876515043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 736927.

The product of its (nonzero) digits is 2419200, while the sum is 51.

The spelling of 138876515043 in words is "one hundred thirty-eight billion, eight hundred seventy-six million, five hundred fifteen thousand, forty-three".

Divisors: 1 3 7 21 47 141 191 329 573 987 1337 4011 8977 26931 62839 188517 736679 2210037 5156753 15470259 34623913 103871739 140705689 242367391 422117067 727102173 984939823 2954819469 6613167383 19839502149 46292171681 138876515043