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12480578378 = 214563428503
BaseRepresentation
bin10111001111110011…
…01000001101001010
31012012210102001221122
423213321220031022
5201030012002003
65422234035242
7621165110612
oct134771501512
935183361848
1012480578378
115324a63294
122503878b22
13123b8a9828
14865799a42
154d0a4e238
hex2e7e6834a

12480578378 has 8 divisors (see below), whose sum is σ = 18722196768. Its totient is φ = 6239846124.

The previous prime is 12480578353. The next prime is 12480578381. The reversal of 12480578378 is 87387508421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×124805783782 (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 185126 + ... + 243377.

It is an arithmetic number, because the mean of its divisors is an integer number (2340274596).

Almost surely, 212480578378 is an apocalyptic number.

12480578378 is a deficient number, since it is larger than the sum of its proper divisors (6241618390).

12480578378 is a wasteful number, since it uses less digits than its factorization.

12480578378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443068.

The product of its (nonzero) digits is 3010560, while the sum is 53.

The spelling of 12480578378 in words is "twelve billion, four hundred eighty million, five hundred seventy-eight thousand, three hundred seventy-eight".

Divisors: 1 2 14563 29126 428503 857006 6240289189 12480578378