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1308006887090 = 25797164116297
BaseRepresentation
bin10011000010001011010…
…010010010111010110010
311122001012020201110102212
4103002023102102322302
5132412244230341330
62440520131012122
7163333426044461
oct23021322227262
94561166643385
101308006887090
114647a4873a52
12191600a3a042
1396462bac257
1447444b269d8
1524056d31295
hex1308b492eb2

1308006887090 has 16 divisors (see below), whose sum is σ = 2357366504472. Its totient is φ = 522546286464.

The previous prime is 1308006886999. The next prime is 1308006887107. The reversal of 1308006887090 is 907886008031.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1173502058089 + 134504829001 = 1083283^2 + 366749^2 .

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, 82050179 + ... + 82066118.

Almost surely, 21308006887090 is an apocalyptic number.

1308006887090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1308006887090 is a deficient number, since it is larger than the sum of its proper divisors (1049359617382).

1308006887090 is a wasteful number, since it uses less digits than its factorization.

1308006887090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164117101.

The product of its (nonzero) digits is 580608, while the sum is 50.

The spelling of 1308006887090 in words is "one trillion, three hundred eight billion, six million, eight hundred eighty-seven thousand, ninety".

Divisors: 1 2 5 10 797 1594 3985 7970 164116297 328232594 820581485 1641162970 130800688709 261601377418 654003443545 1308006887090