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15145140412451 = 729191390610487
BaseRepresentation
bin1101110001100100000010…
…1101101110000000100011
31222121212020212122021020002
43130121000231232000203
53441114221421144301
652113325332210215
73122125461302120
oct334310055560043
958555225567202
1015145140412451
11490a021a25675
121847290a6996b
1385b246a6333a
143a5058ab5747
151b3e5e7c616b
hexdc640b6e023

15145140412451 has 16 divisors (see below), whose sum is σ = 17999331287040. Its totient is φ = 12468286713120.

The previous prime is 15145140412447. The next prime is 15145140412471. The reversal of 15145140412451 is 15421404154151.

It is not a de Polignac number, because 15145140412451 - 22 = 15145140412447 is a prime.

It is a super-2 number, since 2×151451404124512 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15145140412471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 195266471 + ... + 195344016.

It is an arithmetic number, because the mean of its divisors is an integer number (1124958205440).

Almost surely, 215145140412451 is an apocalyptic number.

15145140412451 is a deficient number, since it is larger than the sum of its proper divisors (2854190874589).

15145140412451 is a wasteful number, since it uses less digits than its factorization.

15145140412451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390610714.

The product of its (nonzero) digits is 64000, while the sum is 38.

The spelling of 15145140412451 in words is "fifteen trillion, one hundred forty-five billion, one hundred forty million, four hundred twelve thousand, four hundred fifty-one".

Divisors: 1 7 29 191 203 1337 5539 38773 390610487 2734273409 11327704123 74606603017 79293928861 522246221119 2163591487493 15145140412451