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1485904212 = 2232133175009
BaseRepresentation
bin101100010010001…
…0001100101010100
310211112222202101100
41120210101211110
511020342413322
6403240030100
751551656152
oct13044214524
93745882340
101485904212
116a2832911
12355762330
131a8ac8380
141014b43d2
158a6b2dac
hex58911954

1485904212 has 36 divisors (see below), whose sum is σ = 4044962740. Its totient is φ = 457201152.

The previous prime is 1485904181. The next prime is 1485904219. The reversal of 1485904212 is 2124095841.

1485904212 is a `hidden beast` number, since 1 + 48 + 590 + 4 + 21 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 461648196 + 1024256016 = 21486^2 + 32004^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×14859042122 = 4415822654478681888, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1485904219) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1587037 + ... + 1587972.

Almost surely, 21485904212 is an apocalyptic number.

1485904212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1485904212 is an abundant number, since it is smaller than the sum of its proper divisors (2559058528).

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

1485904212 is a wasteful number, since it uses less digits than its factorization.

1485904212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3175032 (or 3175027 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 1485904212 is about 38547.4280854119. The cubic root of 1485904212 is about 1141.1172518684.

The spelling of 1485904212 in words is "one billion, four hundred eighty-five million, nine hundred four thousand, two hundred twelve".

Divisors: 1 2 3 4 6 9 12 13 18 26 36 39 52 78 117 156 234 468 3175009 6350018 9525027 12700036 19050054 28575081 38100108 41275117 57150162 82550234 114300324 123825351 165100468 247650702 371476053 495301404 742952106 1485904212