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68942132 = 22723107053
BaseRepresentation
bin1000001101111…
…11100100110100
311210201121211022
410012333210310
5120122122012
610501400312
71464666320
oct406774464
9153647738
1068942132
1135a09276
121b109098
131138b17c
149228980
1560bc472
hex41bf934

68942132 has 24 divisors (see below), whose sum is σ = 143880576. Its totient is φ = 28261728.

The previous prime is 68942131. The next prime is 68942141. The reversal of 68942132 is 23124986.

It is a junction number, because it is equal to n+sod(n) for n = 68942092 and 68942101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68942131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52883 + ... + 54170.

It is an arithmetic number, because the mean of its divisors is an integer number (5995024).

Almost surely, 268942132 is an apocalyptic number.

It is an amenable number.

68942132 is an abundant number, since it is smaller than the sum of its proper divisors (74938444).

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

68942132 is a wasteful number, since it uses less digits than its factorization.

68942132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107087 (or 107085 counting only the distinct ones).

The product of its digits is 20736, while the sum is 35.

The square root of 68942132 is about 8303.1398880183. The cubic root of 68942132 is about 410.0418993468.

The spelling of 68942132 in words is "sixty-eight million, nine hundred forty-two thousand, one hundred thirty-two".

Divisors: 1 2 4 7 14 23 28 46 92 161 322 644 107053 214106 428212 749371 1498742 2462219 2997484 4924438 9848876 17235533 34471066 68942132