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2172340495 = 513177127689
BaseRepresentation
bin1000000101111011…
…0100100100001111
312121101122022221101
42001132310210033
513422104343440
6555320443531
7104555406133
oct20136644417
95541568841
102172340495
11a15258626
125076195a7
13288098aa0
1416871b3c3
15caaa669a
hex817b490f

2172340495 has 32 divisors (see below), whose sum is σ = 3014444160. Its totient is φ = 1488506880.

The previous prime is 2172340463. The next prime is 2172340523. The reversal of 2172340495 is 5940432712.

It is not a de Polignac number, because 2172340495 - 25 = 2172340463 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 64611 + ... + 92299.

It is an arithmetic number, because the mean of its divisors is an integer number (94201380).

Almost surely, 22172340495 is an apocalyptic number.

2172340495 is a deficient number, since it is larger than the sum of its proper divisors (842103665).

2172340495 is a wasteful number, since it uses less digits than its factorization.

2172340495 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27795.

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 2172340495 is about 46608.3736575307. The cubic root of 2172340495 is about 1295.1178805748.

The spelling of 2172340495 in words is "two billion, one hundred seventy-two million, three hundred forty thousand, four hundred ninety-five".

Divisors: 1 5 13 17 65 71 85 221 355 923 1105 1207 4615 6035 15691 27689 78455 138445 359957 470713 1799785 1965919 2353565 6119269 9829595 25556947 30596345 33420623 127784735 167103115 434468099 2172340495