Search a number
-
+
99983445 = 3529229847
BaseRepresentation
bin1011111010110…
…10000001010101
320222010200111120
411331122001111
5201043432240
613530554153
72322562632
oct575320125
9228120446
1099983445
1151490051
1229598959
1317939103
14d3c9189
158b9ead0
hex5f5a055

99983445 has 16 divisors (see below), whose sum is σ = 165490560. Its totient is φ = 51485504.

The previous prime is 99983441. The next prime is 99983449. The reversal of 99983445 is 54438999.

It is an interprime number because it is at equal distance from previous prime (99983441) and next prime (99983449).

It is a cyclic number.

It is not a de Polignac number, because 99983445 - 22 = 99983441 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a zygodrome in base 4.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99983441) 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, 114489 + ... + 115358.

It is an arithmetic number, because the mean of its divisors is an integer number (10343160).

Almost surely, 299983445 is an apocalyptic number.

It is an amenable number.

99983445 is a deficient number, since it is larger than the sum of its proper divisors (65507115).

99983445 is a wasteful number, since it uses less digits than its factorization.

99983445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229884.

The product of its digits is 1399680, while the sum is 51.

The square root of 99983445 is about 9999.1722157387. The cubic root of 99983445 is about 464.1332681133.

The spelling of 99983445 in words is "ninety-nine million, nine hundred eighty-three thousand, four hundred forty-five".

Divisors: 1 3 5 15 29 87 145 435 229847 689541 1149235 3447705 6665563 19996689 33327815 99983445