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99470015 = 519894003
BaseRepresentation
bin1011110110111…
…00101010111111
320221011121012122
411323130222333
5200431020030
613511553155
72315324021
oct573345277
9227147178
1099470015
115116a327
122938b7bb
13177b94c8
14d2d4011
158aec8e5
hex5edcabf

99470015 has 4 divisors (see below), whose sum is σ = 119364024. Its totient is φ = 79576008.

The previous prime is 99469999. The next prime is 99470017. The reversal of 99470015 is 51007499.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 51007499 = 61738263.

It is a cyclic number.

It is not a de Polignac number, because 99470015 - 24 = 99469999 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 (99470017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9946997 + ... + 9947006.

It is an arithmetic number, because the mean of its divisors is an integer number (29841006).

Almost surely, 299470015 is an apocalyptic number.

99470015 is a deficient number, since it is larger than the sum of its proper divisors (19894009).

99470015 is a wasteful number, since it uses less digits than its factorization.

99470015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19894008.

The product of its (nonzero) digits is 11340, while the sum is 35.

The square root of 99470015 is about 9973.4655461379. The cubic root of 99470015 is about 463.3374396521.

The spelling of 99470015 in words is "ninety-nine million, four hundred seventy thousand, fifteen".

Divisors: 1 5 19894003 99470015