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99954455 = 519990891
BaseRepresentation
bin1011111010100…
…10111100010111
320222002012201212
411331102330113
5201042020310
613530212035
72322412256
oct575227427
9228065655
1099954455
1151470297
122958401b
1317928b63
14d3bc79d
158b96205
hex5f52f17

99954455 has 4 divisors (see below), whose sum is σ = 119945352. Its totient is φ = 79963560.

The previous prime is 99954443. The next prime is 99954479. The reversal of 99954455 is 55445999.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 99954455 - 210 = 99953431 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9995441 + ... + 9995450.

It is an arithmetic number, because the mean of its divisors is an integer number (29986338).

Almost surely, 299954455 is an apocalyptic number.

99954455 is a deficient number, since it is larger than the sum of its proper divisors (19990897).

99954455 is a wasteful number, since it uses less digits than its factorization.

99954455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19990896.

The product of its digits is 1458000, while the sum is 50.

The square root of 99954455 is about 9997.7224906476. The cubic root of 99954455 is about 464.0884056060.

The spelling of 99954455 in words is "ninety-nine million, nine hundred fifty-four thousand, four hundred fifty-five".

Divisors: 1 5 19990891 99954455