Search a number
-
+
104993215 = 51074432
BaseRepresentation
bin1100100001000…
…01000110111111
321022120012121121
412100201012333
5203334240330
614230211411
72413266445
oct620410677
9238505547
10104993215
11542a1a58
122b1b3b67
13189a1482
14dd30b95
15933e17a
hex64211bf

104993215 has 12 divisors (see below), whose sum is σ = 127457064. Its totient is φ = 83021744.

The previous prime is 104993197. The next prime is 104993227. The reversal of 104993215 is 512399401.

It is not a de Polignac number, because 104993215 - 221 = 102896063 is a prime.

It is a super-2 number, since 2×1049932152 = 22047150392072450, which contains 22 as substring.

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 (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 236784 + ... + 237226.

It is an arithmetic number, because the mean of its divisors is an integer number (10621422).

Almost surely, 2104993215 is an apocalyptic number.

104993215 is a deficient number, since it is larger than the sum of its proper divisors (22463849).

104993215 is an frugal number, since it uses more digits than its factorization.

104993215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 998 (or 555 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 34.

The square root of 104993215 is about 10246.6196865113. The cubic root of 104993215 is about 471.7592360497.

The spelling of 104993215 in words is "one hundred four million, nine hundred ninety-three thousand, two hundred fifteen".

Divisors: 1 5 107 443 535 2215 47401 196249 237005 981245 20998643 104993215