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78387341 = 597971667
BaseRepresentation
bin1001010110000…
…01100010001101
312110111111012212
410223001202031
5130031343331
611440040205
71641165344
oct453014215
9173444185
1078387341
114027a62a
1222303065
1313317356
14a5a6b5b
156d35d2b
hex4ac188d

78387341 has 8 divisors (see below), whose sum is σ = 79863840. Its totient is φ = 76915888.

The previous prime is 78387317. The next prime is 78387347. The reversal of 78387341 is 14378387.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 78387341 - 26 = 78387277 is a prime.

It is a super-2 number, since 2×783873412 = 12289150458100562, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78387347) 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 7 ways as a sum of consecutive naturals, for example, 46190 + ... + 47856.

It is an arithmetic number, because the mean of its divisors is an integer number (9982980).

Almost surely, 278387341 is an apocalyptic number.

It is an amenable number.

78387341 is a deficient number, since it is larger than the sum of its proper divisors (1476499).

78387341 is a wasteful number, since it uses less digits than its factorization.

78387341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2523.

The product of its digits is 112896, while the sum is 41.

The square root of 78387341 is about 8853.6625754543. The cubic root of 78387341 is about 427.9719553202.

The spelling of 78387341 in words is "seventy-eight million, three hundred eighty-seven thousand, three hundred forty-one".

Divisors: 1 59 797 1667 47023 98353 1328599 78387341