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80420910 = 2352680697
BaseRepresentation
bin1001100101100…
…10000000101110
312121022210202020
410302302000232
5131041432120
611551411010
71664365203
oct462620056
9177283666
1080420910
1141439469
1222b23a66
1313879b4b
14a975caa
1570d8640
hex4cb202e

80420910 has 16 divisors (see below), whose sum is σ = 193010256. Its totient is φ = 21445568.

The previous prime is 80420909. The next prime is 80420911. The reversal of 80420910 is 1902408.

It is an interprime number because it is at equal distance from previous prime (80420909) and next prime (80420911).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80420911) 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, 1340319 + ... + 1340378.

It is an arithmetic number, because the mean of its divisors is an integer number (12063141).

Almost surely, 280420910 is an apocalyptic number.

80420910 is an abundant number, since it is smaller than the sum of its proper divisors (112589346).

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

80420910 is a wasteful number, since it uses less digits than its factorization.

80420910 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2680707.

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 80420910 is about 8967.7706259694. The cubic root of 80420910 is about 431.6413024722.

The spelling of 80420910 in words is "eighty million, four hundred twenty thousand, nine hundred ten".

Divisors: 1 2 3 5 6 10 15 30 2680697 5361394 8042091 13403485 16084182 26806970 40210455 80420910