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732068028 = 223220335223
BaseRepresentation
bin101011101000100…
…111100010111100
31220000111220112200
4223220213202330
52444402134103
6200350431500
724066322056
oct5350474274
91800456480
10732068028
113462625aa
12185202590
13b8889763
146d3248d6
15444090a3
hex2ba278bc

732068028 has 18 divisors (see below), whose sum is σ = 1850505384. Its totient is φ = 244022664.

The previous prime is 732068027. The next prime is 732068033. The reversal of 732068028 is 820860237.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 20335223 = 732068028 / (7 + 3 + 2 + 0 + 6 + 8 + 0 + 2 + 8).

It is a junction number, because it is equal to n+sod(n) for n = 732067983 and 732068001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (732068023) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10167576 + ... + 10167647.

Almost surely, 2732068028 is an apocalyptic number.

It is an amenable number.

732068028 is an abundant number, since it is smaller than the sum of its proper divisors (1118437356).

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

732068028 is a wasteful number, since it uses less digits than its factorization.

732068028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20335233 (or 20335228 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 732068028 is about 27056.7556813451. The cubic root of 732068028 is about 901.2607959090.

The spelling of 732068028 in words is "seven hundred thirty-two million, sixty-eight thousand, twenty-eight".

Divisors: 1 2 3 4 6 9 12 18 36 20335223 40670446 61005669 81340892 122011338 183017007 244022676 366034014 732068028