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80614420 = 2258945289
BaseRepresentation
bin1001100111000…
…01010000010100
312121200122012021
410303201100110
5131114130140
611555502524
71666132315
oct463412024
9177618167
1080614420
1141560897
1222bb7a44
1313916c53
14a9c660c
157125b4a
hex4ce1414

80614420 has 24 divisors (see below), whose sum is σ = 171196200. Its totient is φ = 31882752.

The previous prime is 80614409. The next prime is 80614427. The reversal of 80614420 is 2441608.

It can be written as a sum of positive squares in 4 ways, for example, as 8737936 + 71876484 = 2956^2 + 8478^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80614427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20865 + ... + 24424.

It is an arithmetic number, because the mean of its divisors is an integer number (7133175).

Almost surely, 280614420 is an apocalyptic number.

It is an amenable number.

80614420 is an abundant number, since it is smaller than the sum of its proper divisors (90581780).

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

80614420 is a wasteful number, since it uses less digits than its factorization.

80614420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45387 (or 45385 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 80614420 is about 8978.5533355881. The cubic root of 80614420 is about 431.9872324187.

The spelling of 80614420 in words is "eighty million, six hundred fourteen thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 89 178 356 445 890 1780 45289 90578 181156 226445 452890 905780 4030721 8061442 16122884 20153605 40307210 80614420