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1934077819 = 15712318967
BaseRepresentation
bin111001101000111…
…1010111101111011
311222210022022222211
41303101322331323
512430110442234
6515525555551
765633250562
oct16321727573
94883268884
101934077819
11902811323
1245b875bb7
1324a90595b
14144c18bd9
15b4be0164
hex7347af7b

1934077819 has 4 divisors (see below), whose sum is σ = 1946396944. Its totient is φ = 1921758696.

The previous prime is 1934077813. The next prime is 1934077861. The reversal of 1934077819 is 9187704391.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1934077819 - 25 = 1934077787 is a prime.

It is a super-2 number, since 2×19340778192 = 7481314019895593522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1934077813) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6159327 + ... + 6159640.

It is an arithmetic number, because the mean of its divisors is an integer number (486599236).

Almost surely, 21934077819 is an apocalyptic number.

1934077819 is a deficient number, since it is larger than the sum of its proper divisors (12319125).

1934077819 is a wasteful number, since it uses less digits than its factorization.

1934077819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12319124.

The product of its (nonzero) digits is 381024, while the sum is 49.

The square root of 1934077819 is about 43978.1516096345. The cubic root of 1934077819 is about 1245.9233203870.

The spelling of 1934077819 in words is "one billion, nine hundred thirty-four million, seventy-seven thousand, eight hundred nineteen".

Divisors: 1 157 12318967 1934077819