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1590341493 = 31340777987
BaseRepresentation
bin101111011001010…
…1010111101110101
311002211111201101210
41132302222331311
511224111411433
6421450312033
754260452056
oct13662527565
94084451353
101590341493
11746785114
12384728619
131c4633790
141112dc72d
1594942463
hex5ecaaf75

1590341493 has 8 divisors (see below), whose sum is σ = 2283567328. Its totient is φ = 978671664.

The previous prime is 1590341461. The next prime is 1590341507. The reversal of 1590341493 is 3941430951.

It is a happy number.

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

It is not a de Polignac number, because 1590341493 - 25 = 1590341461 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 40777987 = 1590341493 / (1 + 5 + 9 + 0 + 3 + 4 + 1 + 4 + 9 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1590341293) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20388955 + ... + 20389032.

It is an arithmetic number, because the mean of its divisors is an integer number (285445916).

Almost surely, 21590341493 is an apocalyptic number.

1590341493 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1590341493 is a deficient number, since it is larger than the sum of its proper divisors (693225835).

1590341493 is a wasteful number, since it uses less digits than its factorization.

1590341493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40778003.

The product of its (nonzero) digits is 58320, while the sum is 39.

The square root of 1590341493 is about 39879.0859097848. The cubic root of 1590341493 is about 1167.2488732293.

The spelling of 1590341493 in words is "one billion, five hundred ninety million, three hundred forty-one thousand, four hundred ninety-three".

Divisors: 1 3 13 39 40777987 122333961 530113831 1590341493