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80454964 = 22157128113
BaseRepresentation
bin1001100101110…
…10010100110100
312121101112110111
410302322110310
5131044024324
611552232404
71664566402
oct462722464
9177345414
1080454964
1141462007
1222b3b704
131388c4b5
14a984472
1570e3794
hex4cba534

80454964 has 12 divisors (see below), whose sum is σ = 141694084. Its totient is φ = 39970944.

The previous prime is 80454947. The next prime is 80454967. The reversal of 80454964 is 46945408.

It can be written as a sum of positive squares in 2 ways, for example, as 15523600 + 64931364 = 3940^2 + 8058^2 .

It is a super-3 number, since 3×804549643 (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80454967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63429 + ... + 64684.

Almost surely, 280454964 is an apocalyptic number.

It is an amenable number.

80454964 is a deficient number, since it is larger than the sum of its proper divisors (61239120).

80454964 is a wasteful number, since it uses less digits than its factorization.

80454964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128274 (or 128272 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 40.

The square root of 80454964 is about 8969.6691131836. The cubic root of 80454964 is about 431.7022196252.

It can be divided in two parts, 80454 and 964, that added together give a palindrome (81418).

The spelling of 80454964 in words is "eighty million, four hundred fifty-four thousand, nine hundred sixty-four".

Divisors: 1 2 4 157 314 628 128113 256226 512452 20113741 40227482 80454964