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99490651 = 1312316217
BaseRepresentation
bin1011110111000…
…01101101011011
320221012122111221
411323201231123
5200432200101
613512232511
72315441131
oct573415533
9227178457
1099490651
1151183887
122939b737
13177c5a10
14d2db751
158b03aa1
hex5ee1b5b

99490651 has 8 divisors (see below), whose sum is σ = 107248064. Its totient is φ = 91748160.

The previous prime is 99490649. The next prime is 99490661. The reversal of 99490651 is 15609499.

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 99490651 - 21 = 99490649 is a prime.

It is the 9975-th Hogben number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 99490598 and 99490607.

It is not an unprimeable number, because it can be changed into a prime (99490621) by changing a digit.

It is a nontrivial repunit in base 9974.

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 7 ways as a sum of consecutive naturals, for example, 12895 + ... + 19111.

It is an arithmetic number, because the mean of its divisors is an integer number (13406008).

Almost surely, 299490651 is an apocalyptic number.

99490651 is a deficient number, since it is larger than the sum of its proper divisors (7757413).

99490651 is a wasteful number, since it uses less digits than its factorization.

99490651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7461.

The product of its (nonzero) digits is 87480, while the sum is 43.

The square root of 99490651 is about 9974.5000375959. The cubic root of 99490651 is about 463.3694786885.

The spelling of 99490651 in words is "ninety-nine million, four hundred ninety thousand, six hundred fifty-one".

Divisors: 1 13 1231 6217 16003 80821 7653127 99490651