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80020464 = 2438391987
BaseRepresentation
bin1001100010100…
…00001111110000
312120120110102220
410301100033300
5130441123324
611535041040
71661106546
oct461201760
9176513386
1080020464
1141195617
1222970180
13137697b4
14a8add96
157059b79
hex4c503f0

80020464 has 40 divisors (see below), whose sum is σ = 207070080. Its totient is φ = 26628288.

The previous prime is 80020459. The next prime is 80020469. The reversal of 80020464 is 46402008.

It is an interprime number because it is at equal distance from previous prime (80020459) and next prime (80020469).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80020469) 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 7 ways as a sum of consecutive naturals, for example, 39279 + ... + 41265.

It is an arithmetic number, because the mean of its divisors is an integer number (5176752).

Almost surely, 280020464 is an apocalyptic number.

It is an amenable number.

80020464 is an abundant number, since it is smaller than the sum of its proper divisors (127049616).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

80020464 is a wasteful number, since it uses less digits than its factorization.

80020464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2837 (or 2831 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 80020464 is about 8945.4158092288. The cubic root of 80020464 is about 430.9236751670.

The spelling of 80020464 in words is "eighty million, twenty thousand, four hundred sixty-four".

Divisors: 1 2 3 4 6 8 12 16 24 48 839 1678 1987 2517 3356 3974 5034 5961 6712 7948 10068 11922 13424 15896 20136 23844 31792 40272 47688 95376 1667093 3334186 5001279 6668372 10002558 13336744 20005116 26673488 40010232 80020464