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83078427 = 3223124183
BaseRepresentation
bin1001111001110…
…10110100011011
312210022211011210
410330322310123
5132232002202
612124354203
72026104105
oct474726433
9183284153
1083078427
1142994063
12239a5963
131429a643
14b068575
157460c6c
hex4f3ad1b

83078427 has 8 divisors (see below), whose sum is σ = 111268864. Its totient is φ = 55136808.

The previous prime is 83078399. The next prime is 83078441. The reversal of 83078427 is 72487038.

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

It is not a de Polignac number, because 83078427 - 27 = 83078299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83078467) 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, 61423 + ... + 62760.

It is an arithmetic number, because the mean of its divisors is an integer number (13908608).

Almost surely, 283078427 is an apocalyptic number.

83078427 is a deficient number, since it is larger than the sum of its proper divisors (28190437).

83078427 is a wasteful number, since it uses less digits than its factorization.

83078427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124409.

The product of its (nonzero) digits is 75264, while the sum is 39.

The square root of 83078427 is about 9114.7368036603. The cubic root of 83078427 is about 436.3444151058.

The spelling of 83078427 in words is "eighty-three million, seventy-eight thousand, four hundred twenty-seven".

Divisors: 1 3 223 669 124183 372549 27692809 83078427