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143631406948 = 2235907851737
BaseRepresentation
bin1000010111000100011…
…0010101011101100100
3111201201220211110120211
42011301012111131210
54323124120010243
6145552223305204
713243214546401
oct2056106253544
9451656743524
10143631406948
1155a06203a07
1223a05a4b204
131071001a5c3
146d47a352a8
153b09938d9d
hex2171195764

143631406948 has 6 divisors (see below), whose sum is σ = 251354962166. Its totient is φ = 71815703472.

The previous prime is 143631406943. The next prime is 143631406979. The reversal of 143631406948 is 849604136341.

It can be written as a sum of positive squares in only one way, i.e., 86552463204 + 57078943744 = 294198^2 + 238912^2 .

It is not an unprimeable number, because it can be changed into a prime (143631406943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17953925865 + ... + 17953925872.

Almost surely, 2143631406948 is an apocalyptic number.

It is an amenable number.

143631406948 is a deficient number, since it is larger than the sum of its proper divisors (107723555218).

143631406948 is a wasteful number, since it uses less digits than its factorization.

143631406948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35907851741 (or 35907851739 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 49.

The spelling of 143631406948 in words is "one hundred forty-three billion, six hundred thirty-one million, four hundred six thousand, nine hundred forty-eight".

Divisors: 1 2 4 35907851737 71815703474 143631406948