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45487878454 = 2191796687427
BaseRepresentation
bin101010010111010010…
…011111000100110110
311100102010110122111001
4222113102133010312
51221124344102304
632521415033514
73200142405304
oct522722370466
9140363418431
1045487878454
11183227a3387
12899596b89a
13439c010b15
1422b738b274
1512b36aeda4
hexa9749f136

45487878454 has 16 divisors (see below), whose sum is σ = 72224222400. Its totient is φ = 21426512904.

The previous prime is 45487878439. The next prime is 45487878487.

It is a happy number.

45487878454 is nontrivially palindromic in base 10.

It is a super-3 number, since 3×454878784543 (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 3336912 + ... + 3350515.

It is an arithmetic number, because the mean of its divisors is an integer number (4514013900).

Almost surely, 245487878454 is an apocalyptic number.

45487878454 is a deficient number, since it is larger than the sum of its proper divisors (26736343946).

45487878454 is a wasteful number, since it uses less digits than its factorization.

45487878454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6687627.

The product of its digits is 160563200, while the sum is 64.

The spelling of 45487878454 in words is "forty-five billion, four hundred eighty-seven million, eight hundred seventy-eight thousand, four hundred fifty-four".

Divisors: 1 2 19 38 179 358 3401 6802 6687427 13374854 127061113 254122226 1197049433 2394098866 22743939227 45487878454