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68889032 = 2317506537
BaseRepresentation
bin1000001101100…
…10100111001000
311210121220222122
410012302213020
5120113422112
610500310412
71464355442
oct406624710
9153556878
1068889032
1135982393
121b0a2408
131136cc54
149213492
1560ab872
hex41b29c8

68889032 has 16 divisors (see below), whose sum is σ = 136765260. Its totient is φ = 32418304.

The previous prime is 68889031. The next prime is 68889059. The reversal of 68889032 is 23098886.

It can be written as a sum of positive squares in 2 ways, for example, as 68790436 + 98596 = 8294^2 + 314^2 .

It is not an unprimeable number, because it can be changed into a prime (68889031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 253133 + ... + 253404.

Almost surely, 268889032 is an apocalyptic number.

It is an amenable number.

68889032 is a deficient number, since it is larger than the sum of its proper divisors (67876228).

68889032 is a wasteful number, since it uses less digits than its factorization.

68889032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 506560 (or 506556 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 44.

The square root of 68889032 is about 8299.9416865421. The cubic root of 68889032 is about 409.9365993577.

The spelling of 68889032 in words is "sixty-eight million, eight hundred eighty-nine thousand, thirty-two".

Divisors: 1 2 4 8 17 34 68 136 506537 1013074 2026148 4052296 8611129 17222258 34444516 68889032