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1670113290 = 23555670443
BaseRepresentation
bin110001110001011…
…1110100000001010
311022101121112201210
41203202332200022
511410022111130
6433420153550
756246504646
oct14342764012
94271545653
101670113290
1178780a91a
123a73988b6
13208014021
1411bb45c26
159b94d5b0
hex638be80a

1670113290 has 16 divisors (see below), whose sum is σ = 4008271968. Its totient is φ = 445363536.

The previous prime is 1670113279. The next prime is 1670113297. The reversal of 1670113290 is 923110761.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 55670443 = 1670113290 / (1 + 6 + 7 + 0 + 1 + 1 + 3 + 2 + 9 + 0).

It is not an unprimeable number, because it can be changed into a prime (1670113297) 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, 27835192 + ... + 27835251.

It is an arithmetic number, because the mean of its divisors is an integer number (250516998).

Almost surely, 21670113290 is an apocalyptic number.

1670113290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1670113290 is an abundant number, since it is smaller than the sum of its proper divisors (2338158678).

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

1670113290 is a wasteful number, since it uses less digits than its factorization.

1670113290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55670453.

The product of its (nonzero) digits is 2268, while the sum is 30.

The square root of 1670113290 is about 40867.0195879269. The cubic root of 1670113290 is about 1186.4478235323.

It can be divided in two parts, 1670 and 113290, that added together give a triangular number (114960 = T479).

The spelling of 1670113290 in words is "one billion, six hundred seventy million, one hundred thirteen thousand, two hundred ninety".

Divisors: 1 2 3 5 6 10 15 30 55670443 111340886 167011329 278352215 334022658 556704430 835056645 1670113290