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78304483 = 81196553
BaseRepresentation
bin1001010101011…
…01010011100011
312110100021120001
410222231103203
5130021220413
611434200431
71640401645
oct452552343
9173307501
1078304483
1140223354
1222283117
13132b871a
14a584895
156d1b4dd
hex4aad4e3

78304483 has 4 divisors (see below), whose sum is σ = 78401848. Its totient is φ = 78207120.

The previous prime is 78304451. The next prime is 78304487. The reversal of 78304483 is 38440387.

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 78304483 - 25 = 78304451 is a prime.

It is a super-2 number, since 2×783044832 = 12263184115794578, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78304487) 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, 47466 + ... + 49087.

It is an arithmetic number, because the mean of its divisors is an integer number (19600462).

Almost surely, 278304483 is an apocalyptic number.

78304483 is a deficient number, since it is larger than the sum of its proper divisors (97365).

78304483 is an equidigital number, since it uses as much as digits as its factorization.

78304483 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97364.

The product of its (nonzero) digits is 64512, while the sum is 37.

The square root of 78304483 is about 8848.9820318498. The cubic root of 78304483 is about 427.8211086758.

It can be divided in two parts, 78304 and 483, that added together give a palindrome (78787).

The spelling of 78304483 in words is "seventy-eight million, three hundred four thousand, four hundred eighty-three".

Divisors: 1 811 96553 78304483