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1870134109 = 19701140411
BaseRepresentation
bin110111101110111…
…1111101101011101
311211022222122201021
41233131333231131
512312223242414
6505323244141
764225610014
oct15735775535
94738878637
101870134109
1187a707488
12442379651
1323a5a793c
1413a531a7b
15ae2adc24
hex6f77fb5d

1870134109 has 8 divisors (see below), whose sum is σ = 1971384480. Its totient is φ = 1769166000.

The previous prime is 1870134047. The next prime is 1870134121. The reversal of 1870134109 is 9014310781.

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

It is not a de Polignac number, because 1870134109 - 215 = 1870101341 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 (1870134139) 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, 56887 + ... + 83524.

It is an arithmetic number, because the mean of its divisors is an integer number (246423060).

Almost surely, 21870134109 is an apocalyptic number.

1870134109 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1870134109 is a deficient number, since it is larger than the sum of its proper divisors (101250371).

1870134109 is a wasteful number, since it uses less digits than its factorization.

1870134109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141131.

The product of its (nonzero) digits is 6048, while the sum is 34.

The square root of 1870134109 is about 43245.0472193059. The cubic root of 1870134109 is about 1232.0384180566.

The spelling of 1870134109 in words is "one billion, eight hundred seventy million, one hundred thirty-four thousand, one hundred nine".

Divisors: 1 19 701 13319 140411 2667809 98428111 1870134109