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38940169604 = 2271781807079
BaseRepresentation
bin100100010001000000…
…111101010110000100
310201111210210120111212
4210101000331112010
51114222140411404
625515554550552
72545654660160
oct442100752604
9121453716455
1038940169604
111557278a856
127668b98458
13389762769b
141c55927ca0
15102d93806e
hex91103d584

38940169604 has 24 divisors (see below), whose sum is σ = 82461536640. Its totient is φ = 15706958976.

The previous prime is 38940169591. The next prime is 38940169607. The reversal of 38940169604 is 40696104983.

It is not an unprimeable number, because it can be changed into a prime (38940169607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40903064 + ... + 40904015.

It is an arithmetic number, because the mean of its divisors is an integer number (3435897360).

Almost surely, 238940169604 is an apocalyptic number.

38940169604 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

38940169604 is an abundant number, since it is smaller than the sum of its proper divisors (43521367036).

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

38940169604 is a wasteful number, since it uses less digits than its factorization.

38940169604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81807107 (or 81807105 counting only the distinct ones).

The product of its (nonzero) digits is 1119744, while the sum is 50.

The spelling of 38940169604 in words is "thirty-eight billion, nine hundred forty million, one hundred sixty-nine thousand, six hundred four".

Divisors: 1 2 4 7 14 17 28 34 68 119 238 476 81807079 163614158 327228316 572649553 1145299106 1390720343 2290598212 2781440686 5562881372 9735042401 19470084802 38940169604