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1670672023 = 2308172383
BaseRepresentation
bin110001110010100…
…0110111010010111
311022102122221011121
41203211012322113
511410143001043
6433440144411
756254322626
oct14345067227
94272587147
101670672023
11788061689
123a7608107
1320817b437
1411bc4d6bd
159ba0dded
hex63946e97

1670672023 has 4 divisors (see below), whose sum is σ = 1670767488. Its totient is φ = 1670576560.

The previous prime is 1670672021. The next prime is 1670672027. The reversal of 1670672023 is 3202760761.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1670672023 - 21 = 1670672021 is a prime.

It is a super-2 number, since 2×16706720232 = 5582290016869825058, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1670672023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1670672021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13111 + ... + 59272.

It is an arithmetic number, because the mean of its divisors is an integer number (417691872).

Almost surely, 21670672023 is an apocalyptic number.

1670672023 is a deficient number, since it is larger than the sum of its proper divisors (95465).

1670672023 is an equidigital number, since it uses as much as digits as its factorization.

1670672023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95464.

The product of its (nonzero) digits is 21168, while the sum is 34.

The square root of 1670672023 is about 40873.8550053699. The cubic root of 1670672023 is about 1186.5801166817.

The spelling of 1670672023 in words is "one billion, six hundred seventy million, six hundred seventy-two thousand, twenty-three".

Divisors: 1 23081 72383 1670672023