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99143045 = 5196471613
BaseRepresentation
bin1011110100011…
…00110110000101
320220112222200122
411322030312011
5200340034140
613500551325
72312462531
oct572146605
9226488618
1099143045
1150a66701
1229252545
1317703731
14d24abc1
158a85ab5
hex5e8cd85

99143045 has 16 divisors (see below), whose sum is σ = 125504640. Its totient is φ = 74977344.

The previous prime is 99142891. The next prime is 99143047. The reversal of 99143045 is 54034199.

It is not a de Polignac number, because 99143045 - 28 = 99142789 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 99142996 and 99143014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99143047) 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, 60659 + ... + 62271.

It is an arithmetic number, because the mean of its divisors is an integer number (7844040).

Almost surely, 299143045 is an apocalyptic number.

99143045 is a gapful number since it is divisible by the number (95) formed by its first and last digit.

It is an amenable number.

99143045 is a deficient number, since it is larger than the sum of its proper divisors (26361595).

99143045 is a wasteful number, since it uses less digits than its factorization.

With its predecessor (99143044) it forms a Ruth-Aaron pair, since the sum of their distinct prime factors is the same (2284).

99143045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2284.

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 99143045 is about 9957.0600580693. The cubic root of 99143045 is about 462.8292002486.

The spelling of 99143045 in words is "ninety-nine million, one hundred forty-three thousand, forty-five".

Divisors: 1 5 19 95 647 1613 3235 8065 12293 30647 61465 153235 1043611 5218055 19828609 99143045