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16272981390 = 2352323584031
BaseRepresentation
bin11110010011111000…
…11111110110001110
31120000002111002212110
433021330133312032
5231311340401030
611250430244450
71114155026301
oct171174376616
946002432773
1016272981390
1169a0745856
1231a1956726
1316c44b4093
14b05310b38
156539691b0
hex3c9f1fd8e

16272981390 has 32 divisors (see below), whose sum is σ = 40753207296. Its totient is φ = 4150789280.

The previous prime is 16272981379. The next prime is 16272981421. The reversal of 16272981390 is 9318927261.

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 15 ways as a sum of consecutive naturals, for example, 11791326 + ... + 11792705.

It is an arithmetic number, because the mean of its divisors is an integer number (1273537728).

Almost surely, 216272981390 is an apocalyptic number.

16272981390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16272981390 is an abundant number, since it is smaller than the sum of its proper divisors (24480225906).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16272981390 is a wasteful number, since it uses less digits than its factorization.

16272981390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23584064.

The product of its (nonzero) digits is 326592, while the sum is 48.

The spelling of 16272981390 in words is "sixteen billion, two hundred seventy-two million, nine hundred eighty-one thousand, three hundred ninety".

Divisors: 1 2 3 5 6 10 15 23 30 46 69 115 138 230 345 690 23584031 47168062 70752093 117920155 141504186 235840310 353760465 542432713 707520930 1084865426 1627298139 2712163565 3254596278 5424327130 8136490695 16272981390