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69534040 = 2351939007
BaseRepresentation
bin1000010010100…
…00000101011000
311211211200202211
410021100011120
5120300042130
610522204504
71503013102
oct411200530
9154750684
1069534040
1136282a54
121b353734
1311537704
149340572
156187a2a
hex4250158

69534040 has 32 divisors (see below), whose sum is σ = 157279680. Its totient is φ = 27666432.

The previous prime is 69534011. The next prime is 69534061. The reversal of 69534040 is 4043596.

It is a junction number, because it is equal to n+sod(n) for n = 69533993 and 69534011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3217 + ... + 12223.

It is an arithmetic number, because the mean of its divisors is an integer number (4914990).

Almost surely, 269534040 is an apocalyptic number.

It is an amenable number.

69534040 is an abundant number, since it is smaller than the sum of its proper divisors (87745640).

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

69534040 is a wasteful number, since it uses less digits than its factorization.

69534040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9211 (or 9207 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 69534040 is about 8338.7073338738. The cubic root of 69534040 is about 411.2120390677.

The spelling of 69534040 in words is "sixty-nine million, five hundred thirty-four thousand, forty".

Divisors: 1 2 4 5 8 10 20 40 193 386 772 965 1544 1930 3860 7720 9007 18014 36028 45035 72056 90070 180140 360280 1738351 3476702 6953404 8691755 13906808 17383510 34767020 69534040