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1540086317 = 72112857303
BaseRepresentation
bin101101111001011…
…1101101000101101
310222022221111020222
41123302331220231
511123230230232
6412453221125
753110342400
oct13362755055
93868844228
101540086317
1172037a710
1236b9317a5
131b70b91a3
14108779d37
1590316d12
hex5bcbda2d

1540086317 has 12 divisors (see below), whose sum is σ = 1954395936. Its totient is φ = 1200066840.

The previous prime is 1540086311. The next prime is 1540086341. The reversal of 1540086317 is 7136800451.

Adding to 1540086317 its reverse (7136800451), we get a palindrome (8676886768).

It is not a de Polignac number, because 1540086317 - 210 = 1540085293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1540086311) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 1428113 + ... + 1429190.

It is an arithmetic number, because the mean of its divisors is an integer number (162866328).

Almost surely, 21540086317 is an apocalyptic number.

It is an amenable number.

1540086317 is a deficient number, since it is larger than the sum of its proper divisors (414309619).

1540086317 is a wasteful number, since it uses less digits than its factorization.

1540086317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2857328 (or 2857321 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 1540086317 is about 39243.9335057025. The cubic root of 1540086317 is about 1154.8219254083.

The spelling of 1540086317 in words is "one billion, five hundred forty million, eighty-six thousand, three hundred seventeen".

Divisors: 1 7 11 49 77 539 2857303 20001121 31430333 140007847 220012331 1540086317