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3804212919 = 31397543921
BaseRepresentation
bin1110001010111111…
…1010111010110111
3100211010022001001210
43202233322322313
530242334303134
61425253252503
7163162163523
oct34257727267
910733261053
103804212919
111682419521
128a2034133
134881b0b80
1428134ad83
15173e9e2e9
hexe2bfaeb7

3804212919 has 8 divisors (see below), whose sum is σ = 5462459632. Its totient is φ = 2341054080.

The previous prime is 3804212891. The next prime is 3804212933. The reversal of 3804212919 is 9192124083.

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

It is not a de Polignac number, because 3804212919 - 227 = 3669995191 is a prime.

It is a super-2 number, since 2×38042129192 = 28944071866173001122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 97543921 = 3804212919 / (3 + 8 + 0 + 4 + 2 + 1 + 2 + 9 + 1 + 9).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3804212989) 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, 48771922 + ... + 48771999.

It is an arithmetic number, because the mean of its divisors is an integer number (682807454).

Almost surely, 23804212919 is an apocalyptic number.

3804212919 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

3804212919 is a deficient number, since it is larger than the sum of its proper divisors (1658246713).

3804212919 is a wasteful number, since it uses less digits than its factorization.

3804212919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97543937.

The product of its (nonzero) digits is 31104, while the sum is 39.

The square root of 3804212919 is about 61678.3018491917. The cubic root of 3804212919 is about 1561.0672237865.

The spelling of 3804212919 in words is "three billion, eight hundred four million, two hundred twelve thousand, nine hundred nineteen".

Divisors: 1 3 13 39 97543921 292631763 1268070973 3804212919