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1214112140 = 22597625831
BaseRepresentation
bin100100001011101…
…1110000110001100
310010121120021202022
41020113132012030
54441303042030
6320250345312
742041532353
oct11027360614
93117507668
101214112140
1157337546a
1229a72b238
131646c5967
14b736499a
15718c6de5
hex485de18c

1214112140 has 24 divisors (see below), whose sum is σ = 2575924512. Its totient is φ = 480637440.

The previous prime is 1214112139. The next prime is 1214112157. The reversal of 1214112140 is 412114121.

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, 310976 + ... + 314855.

It is an arithmetic number, because the mean of its divisors is an integer number (107330188).

Almost surely, 21214112140 is an apocalyptic number.

1214112140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1214112140 is an abundant number, since it is smaller than the sum of its proper divisors (1361812372).

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

1214112140 is a wasteful number, since it uses less digits than its factorization.

1214112140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 625937 (or 625935 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

The square root of 1214112140 is about 34844.1119846668. Note that the first 3 decimals coincide. The cubic root of 1214112140 is about 1066.8080083970.

Adding to 1214112140 its reverse (412114121), we get a palindrome (1626226261).

The spelling of 1214112140 in words is "one billion, two hundred fourteen million, one hundred twelve thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 97 194 388 485 970 1940 625831 1251662 2503324 3129155 6258310 12516620 60705607 121411214 242822428 303528035 607056070 1214112140