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1678830046 = 21397697853
BaseRepresentation
bin110010000010000…
…1110100111011110
311100000000101212121
41210010032213132
511414240030141
6434331053154
756413551145
oct14404164736
94300011777
101678830046
11791723953
123aa2a11ba
13209a7677a
1411cd7475c
159c5c11d1
hex6410e9de

1678830046 has 16 divisors (see below), whose sum is σ = 2539983600. Its totient is φ = 832186368.

The previous prime is 1678829969. The next prime is 1678830059. The reversal of 1678830046 is 6400388761.

It is a junction number, because it is equal to n+sod(n) for n = 1678829984 and 1678830011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 209856 + ... + 217708.

It is an arithmetic number, because the mean of its divisors is an integer number (158748975).

Almost surely, 21678830046 is an apocalyptic number.

1678830046 is a deficient number, since it is larger than the sum of its proper divisors (861153554).

1678830046 is a wasteful number, since it uses less digits than its factorization.

1678830046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8763.

The product of its (nonzero) digits is 193536, while the sum is 43.

The square root of 1678830046 is about 40973.5286007930. The cubic root of 1678830046 is about 1188.5083695140.

The spelling of 1678830046 in words is "one billion, six hundred seventy-eight million, eight hundred thirty thousand, forty-six".

Divisors: 1 2 139 278 769 1538 7853 15706 106891 213782 1091567 2183134 6038957 12077914 839415023 1678830046