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138820012514 = 223139173125497
BaseRepresentation
bin1000000101001001010…
…0010100100111100010
3111021022121100022012222
42001102110110213202
54233300410400024
6143434550351042
713013042431361
oct2012224244742
9437277308188
10138820012514
1153967307077
1222aa265b482
1310124286851
146a0ca2b7d8
15392733a85e
hex20525149e2

138820012514 has 32 divisors (see below), whose sum is σ = 220113452160. Its totient is φ = 65533007232.

The previous prime is 138820012459. The next prime is 138820012519. The reversal of 138820012514 is 415210028831.

It is not an unprimeable number, because it can be changed into a prime (138820012519) 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, 1043414 + ... + 1168910.

It is an arithmetic number, because the mean of its divisors is an integer number (6878545380).

Almost surely, 2138820012514 is an apocalyptic number.

138820012514 is a deficient number, since it is larger than the sum of its proper divisors (81293439646).

138820012514 is a wasteful number, since it uses less digits than its factorization.

138820012514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125834.

The product of its (nonzero) digits is 15360, while the sum is 35.

The spelling of 138820012514 in words is "one hundred thirty-eight billion, eight hundred twenty million, twelve thousand, five hundred fourteen".

Divisors: 1 2 23 46 139 173 278 346 3197 3979 6394 7958 24047 48094 125497 250994 553081 1106162 2886431 5772862 17444083 21710981 34888166 43421962 401213909 499352563 802427818 998705126 3017826359 6035652718 69410006257 138820012514