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80906284 = 22414871013
BaseRepresentation
bin1001101001010…
…00100000101100
312122020110120001
410310220200230
5131203000114
612010034044
72001456244
oct464504054
9178213501
1080906284
11417400a8
1223118924
13139b9a54
14aa60b24
157182374
hex4d2882c

80906284 has 24 divisors (see below), whose sum is σ = 145480608. Its totient is φ = 39346560.

The previous prime is 80906279. The next prime is 80906291. The reversal of 80906284 is 48260908.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79362 + ... + 80374.

It is an arithmetic number, because the mean of its divisors is an integer number (6061692).

Almost surely, 280906284 is an apocalyptic number.

It is an amenable number.

80906284 is a deficient number, since it is larger than the sum of its proper divisors (64574324).

80906284 is a wasteful number, since it uses less digits than its factorization.

80906284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1545 (or 1543 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 80906284 is about 8994.7920487358. The cubic root of 80906284 is about 432.5079402019.

The spelling of 80906284 in words is "eighty million, nine hundred six thousand, two hundred eighty-four".

Divisors: 1 2 4 41 82 164 487 974 1013 1948 2026 4052 19967 39934 41533 79868 83066 166132 493331 986662 1973324 20226571 40453142 80906284