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1214128932 = 223101177411
BaseRepresentation
bin100100001011110…
…0010001100100100
310010121121010210020
41020113202030210
54441304111212
6320250555140
742041632332
oct11027421444
93117533706
101214128932
11573387045
1229a738ab0
131647004b3
14b736ab52
15718cbd8c
hex485e2324

1214128932 has 12 divisors (see below), whose sum is σ = 2832967536. Its totient is φ = 404709640.

The previous prime is 1214128931. The next prime is 1214128943. The reversal of 1214128932 is 2398214121.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 1214128893 and 1214128902.

It is not an unprimeable number, because it can be changed into a prime (1214128931) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50588694 + ... + 50588717.

It is an arithmetic number, because the mean of its divisors is an integer number (236080628).

Almost surely, 21214128932 is an apocalyptic number.

1214128932 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1214128932 is an abundant number, since it is smaller than the sum of its proper divisors (1618838604).

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

1214128932 is a wasteful number, since it uses less digits than its factorization.

1214128932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101177418 (or 101177416 counting only the distinct ones).

The product of its digits is 6912, while the sum is 33.

The square root of 1214128932 is about 34844.3529427653. The cubic root of 1214128932 is about 1066.8129266021.

The spelling of 1214128932 in words is "one billion, two hundred fourteen million, one hundred twenty-eight thousand, nine hundred thirty-two".

Divisors: 1 2 3 4 6 12 101177411 202354822 303532233 404709644 607064466 1214128932