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78482437 = 117134767
BaseRepresentation
bin1001010110110…
…00110000000101
312110200022122221
410223120300011
5130042414222
611442052341
71642042525
oct453306005
9173608587
1078482437
1140335020
122234a0b1
131334b717
14a5cd685
156d540c7
hex4ad8c05

78482437 has 4 divisors (see below), whose sum is σ = 85617216. Its totient is φ = 71347660.

The previous prime is 78482431. The next prime is 78482461. The reversal of 78482437 is 73428487.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-78482437 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 78482393 and 78482402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78482431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3567373 + ... + 3567394.

It is an arithmetic number, because the mean of its divisors is an integer number (21404304).

Almost surely, 278482437 is an apocalyptic number.

It is an amenable number.

78482437 is a deficient number, since it is larger than the sum of its proper divisors (7134779).

78482437 is a wasteful number, since it uses less digits than its factorization.

78482437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7134778.

The product of its digits is 301056, while the sum is 43.

The square root of 78482437 is about 8859.0313804614. The cubic root of 78482437 is about 428.1449508311.

The spelling of 78482437 in words is "seventy-eight million, four hundred eighty-two thousand, four hundred thirty-seven".

Divisors: 1 11 7134767 78482437