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99000071 = 671477613
BaseRepresentation
bin1011110011010…
…01111100000111
320220021201120022
411321221330013
5200321000241
613453525355
72311325642
oct571517407
9226251508
1099000071
1150979245
12291a385b
1317683631
14d210a59
158a5854b
hex5e69f07

99000071 has 4 divisors (see below), whose sum is σ = 100477752. Its totient is φ = 97522392.

The previous prime is 99000059. The next prime is 99000079. The reversal of 99000071 is 17000099.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17000099 = 167101797.

It is a cyclic number.

It is not a de Polignac number, because 99000071 - 26 = 99000007 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 99000071.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99000079) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 738740 + ... + 738873.

It is an arithmetic number, because the mean of its divisors is an integer number (25119438).

Almost surely, 299000071 is an apocalyptic number.

99000071 is a deficient number, since it is larger than the sum of its proper divisors (1477681).

99000071 is a wasteful number, since it uses less digits than its factorization.

99000071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1477680.

The product of its (nonzero) digits is 567, while the sum is 26.

The square root of 99000071 is about 9949.8779389498. The cubic root of 99000071 is about 462.6066115077.

The spelling of 99000071 in words is "ninety-nine million, seventy-one", and thus it is an aban number and an uban number.

Divisors: 1 67 1477613 99000071