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84890380007 = 2917916353377
BaseRepresentation
bin100111100001111011…
…1000110011011100111
322010010011020010012102
41033003313012123213
52342323414130012
6102555331242315
76063443216156
oct1170367063347
9263104203172
1084890380007
1133002451a54
121455174939b
13800b3622b4
14417446359d
15231c9c02c2
hex13c3dc66e7

84890380007 has 8 divisors (see below), whose sum is σ = 88308241200. Its totient is φ = 81505225984.

The previous prime is 84890379979. The next prime is 84890380009. The reversal of 84890380007 is 70008309848.

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 84890380007 - 224 = 84873602791 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84890380009) 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, 8171498 + ... + 8181879.

It is an arithmetic number, because the mean of its divisors is an integer number (11038530150).

Almost surely, 284890380007 is an apocalyptic number.

84890380007 is a deficient number, since it is larger than the sum of its proper divisors (3417861193).

84890380007 is a wasteful number, since it uses less digits than its factorization.

84890380007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16353585.

The product of its (nonzero) digits is 387072, while the sum is 47.

The spelling of 84890380007 in words is "eighty-four billion, eight hundred ninety million, three hundred eighty thousand, seven".

Divisors: 1 29 179 5191 16353377 474247933 2927254483 84890380007