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85272844 = 2221318211
BaseRepresentation
bin1010001010100…
…10100100001100
312221110022100111
411011102210030
5133312212334
612243405404
72053543606
oct505224414
9187408314
1085272844
1144152828
1224683864
1314888407
14b47a176
157746064
hex515290c

85272844 has 6 divisors (see below), whose sum is σ = 149227484. Its totient is φ = 42636420.

The previous prime is 85272839. The next prime is 85272883. The reversal of 85272844 is 44827258.

It is a junction number, because it is equal to n+sod(n) for n = 85272797 and 85272806.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10659102 + ... + 10659109.

Almost surely, 285272844 is an apocalyptic number.

It is an amenable number.

85272844 is a deficient number, since it is larger than the sum of its proper divisors (63954640).

85272844 is a wasteful number, since it uses less digits than its factorization.

85272844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21318215 (or 21318213 counting only the distinct ones).

The product of its digits is 143360, while the sum is 40.

The square root of 85272844 is about 9234.3296454047. The cubic root of 85272844 is about 440.1529151701.

The spelling of 85272844 in words is "eighty-five million, two hundred seventy-two thousand, eight hundred forty-four".

Divisors: 1 2 4 21318211 42636422 85272844