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80622428 = 2220155607
BaseRepresentation
bin1001100111000…
…11001101011100
312121201001011212
410303203031130
5131114404203
612000003552
71666164545
oct463431534
9177631155
1080622428
1141566907
12230005b8
131391a7a3
14a9c94cc
1571281d8
hex4ce335c

80622428 has 6 divisors (see below), whose sum is σ = 141089256. Its totient is φ = 40311212.

The previous prime is 80622401. The next prime is 80622433. The reversal of 80622428 is 82422608.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 80622394 and 80622403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10077800 + ... + 10077807.

It is an arithmetic number, because the mean of its divisors is an integer number (23514876).

Almost surely, 280622428 is an apocalyptic number.

It is an amenable number.

80622428 is a deficient number, since it is larger than the sum of its proper divisors (60466828).

80622428 is a wasteful number, since it uses less digits than its factorization.

80622428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20155611 (or 20155609 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 32.

The square root of 80622428 is about 8978.9992760886. Note that the first 3 decimals coincide. The cubic root of 80622428 is about 432.0015360599.

The spelling of 80622428 in words is "eighty million, six hundred twenty-two thousand, four hundred twenty-eight".

Divisors: 1 2 4 20155607 40311214 80622428