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7138029485 = 513710420481
BaseRepresentation
bin1101010010111010…
…11010111110101101
3200102110110110122102
412221131122332231
5104104313420420
63140144424445
7341613151406
oct65135327655
920373413572
107138029485
113033260224
121472618125
13899aa33b2
144ba00a9ad
152bb9d1a75
hex1a975afad

7138029485 has 8 divisors (see below), whose sum is σ = 8628159096. Its totient is φ = 5668741120.

The previous prime is 7138029469. The next prime is 7138029491. The reversal of 7138029485 is 5849208317.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 903663721 + 6234365764 = 30061^2 + 78958^2 .

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

It is not a de Polignac number, because 7138029485 - 24 = 7138029469 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5209556 + ... + 5210925.

It is an arithmetic number, because the mean of its divisors is an integer number (1078519887).

Almost surely, 27138029485 is an apocalyptic number.

It is an amenable number.

7138029485 is a deficient number, since it is larger than the sum of its proper divisors (1490129611).

7138029485 is a wasteful number, since it uses less digits than its factorization.

7138029485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10420623.

The product of its (nonzero) digits is 483840, while the sum is 47.

The square root of 7138029485 is about 84486.8598363083. The cubic root of 7138029485 is about 1925.4228101455.

The spelling of 7138029485 in words is "seven billion, one hundred thirty-eight million, twenty-nine thousand, four hundred eighty-five".

Divisors: 1 5 137 685 10420481 52102405 1427605897 7138029485