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99830641 = 5379113211
BaseRepresentation
bin1011111001101…
…00101101110001
320221211220220011
411330310231301
5201024040031
613523414521
72321355301
oct574645561
9227756804
1099830641
1151396269
1229524441
13178b46b1
14d389601
158b6e6b1
hex5f34b71

99830641 has 16 divisors (see below), whose sum is σ = 104405760. Its totient is φ = 95397120.

The previous prime is 99830609. The next prime is 99830651. The reversal of 99830641 is 14603899.

It is a 2-Lehmer number, since φ(99830641) divides (99830641-1)2.

It is a cyclic number.

It is a Carmichael number.

It is not a de Polignac number, because 99830641 - 25 = 99830609 is a prime.

It is a deceptive number, since it divides R99830640.

It is a junction number, because it is equal to n+sod(n) for n = 99830594 and 99830603.

It is not an unprimeable number, because it can be changed into a prime (99830651) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 473026 + ... + 473236.

It is an arithmetic number, because the mean of its divisors is an integer number (6525360).

It is a Poulet number, since it divides 299830640-1.

Almost surely, 299830641 is an apocalyptic number.

It is an amenable number.

99830641 is a deficient number, since it is larger than the sum of its proper divisors (4575119).

99830641 is a wasteful number, since it uses less digits than its factorization.

99830641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 456.

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 99830641 is about 9991.5284616519. The cubic root of 99830641 is about 463.8967036828.

The spelling of 99830641 in words is "ninety-nine million, eight hundred thirty thousand, six hundred forty-one".

Divisors: 1 53 79 113 211 4187 5989 8927 11183 16669 23843 473131 883457 1263679 1883597 99830641