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78348361 = 713860971
BaseRepresentation
bin1001010101110…
…00000001001001
312110102111202011
410222320001021
5130024121421
611435135521
71640643610
oct452700111
9173374664
1078348361
1140253313
12222a45a1
13133026a0
14a596877
156d294e1
hex4ab8049

78348361 has 8 divisors (see below), whose sum is σ = 96428864. Its totient is φ = 61989840.

The previous prime is 78348353. The next prime is 78348367. The reversal of 78348361 is 16384387.

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 78348361 - 23 = 78348353 is a prime.

It is a super-2 number, since 2×783483612 = 12276931342772642, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (78348367) 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, 430395 + ... + 430576.

It is an arithmetic number, because the mean of its divisors is an integer number (12053608).

Almost surely, 278348361 is an apocalyptic number.

It is an amenable number.

78348361 is a deficient number, since it is larger than the sum of its proper divisors (18080503).

78348361 is a wasteful number, since it uses less digits than its factorization.

78348361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 860991.

The product of its digits is 96768, while the sum is 40.

The square root of 78348361 is about 8851.4609528597. The cubic root of 78348361 is about 427.9010037584.

The spelling of 78348361 in words is "seventy-eight million, three hundred forty-eight thousand, three hundred sixty-one".

Divisors: 1 7 13 91 860971 6026797 11192623 78348361