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68927532 = 2235743961
BaseRepresentation
bin1000001101111…
…00000000101100
311210200212210120
410012330000230
5120121140112
610501204540
71464605622
oct406740054
9153625716
1068927532
11359a9303
121b100750
131138462b
149223512
1560b7e8c
hex41bc02c

68927532 has 12 divisors (see below), whose sum is σ = 160830936. Its totient is φ = 22975840.

The previous prime is 68927501. The next prime is 68927533. The reversal of 68927532 is 23572986.

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

It is a super-2 number, since 2×689275322 = 9502009335222048, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (68927533) 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, 2871969 + ... + 2871992.

It is an arithmetic number, because the mean of its divisors is an integer number (13402578).

Almost surely, 268927532 is an apocalyptic number.

It is an amenable number.

68927532 is an abundant number, since it is smaller than the sum of its proper divisors (91903404).

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

68927532 is a wasteful number, since it uses less digits than its factorization.

68927532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5743968 (or 5743966 counting only the distinct ones).

The product of its digits is 181440, while the sum is 42.

The square root of 68927532 is about 8302.2606559900. The cubic root of 68927532 is about 410.0129521984.

The spelling of 68927532 in words is "sixty-eight million, nine hundred twenty-seven thousand, five hundred thirty-two".

Divisors: 1 2 3 4 6 12 5743961 11487922 17231883 22975844 34463766 68927532