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1214000440 = 235191597369
BaseRepresentation
bin100100001011100…
…0010110100111000
310010121100121112021
41020113002310320
54441241003230
6320244124224
742040555612
oct11027026470
93117317467
101214000440
115732a9554
1229a696674
13164686b73
14b7335db2
15718a3c7a
hex485c2d38

1214000440 has 32 divisors (see below), whose sum is σ = 2875266000. Its totient is φ = 460041984.

The previous prime is 1214000419. The next prime is 1214000441. The reversal of 1214000440 is 440004121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1214000441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 797925 + ... + 799444.

Almost surely, 21214000440 is an apocalyptic number.

1214000440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1214000440 is an abundant number, since it is smaller than the sum of its proper divisors (1661265560).

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

1214000440 is a wasteful number, since it uses less digits than its factorization.

1214000440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1597399 (or 1597395 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 1214000440 is about 34842.5090944955. The cubic root of 1214000440 is about 1066.7752914551.

Adding to 1214000440 its reverse (440004121), we get a palindrome (1654004561).

The spelling of 1214000440 in words is "one billion, two hundred fourteen million, four hundred forty", and thus it is an aban number.

Divisors: 1 2 4 5 8 10 19 20 38 40 76 95 152 190 380 760 1597369 3194738 6389476 7986845 12778952 15973690 30350011 31947380 60700022 63894760 121400044 151750055 242800088 303500110 607000220 1214000440