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2104508404 = 221721820509
BaseRepresentation
bin111110101110000…
…0011111111110100
312102200000002210201
41331130003333310
513302223232104
6544454530244
7103103012005
oct17534037764
95380002721
102104508404
1198aa38349
124a8966984
13277008c5b
1415d7011ac
15c4b580a4
hex7d703ff4

2104508404 has 18 divisors (see below), whose sum is σ = 3912275990. Its totient is φ = 990356352.

The previous prime is 2104508389. The next prime is 2104508423. The reversal of 2104508404 is 4048054012.

It can be written as a sum of positive squares in 3 ways, for example, as 715455504 + 1389052900 = 26748^2 + 37270^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 909099 + ... + 911410.

Almost surely, 22104508404 is an apocalyptic number.

It is an amenable number.

2104508404 is a deficient number, since it is larger than the sum of its proper divisors (1807767586).

2104508404 is a wasteful number, since it uses less digits than its factorization.

2104508404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1820547 (or 1820528 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 28.

The square root of 2104508404 is about 45874.9212969352. The cubic root of 2104508404 is about 1281.4949176247.

The spelling of 2104508404 in words is "two billion, one hundred four million, five hundred eight thousand, four hundred four".

Divisors: 1 2 4 17 34 68 289 578 1156 1820509 3641018 7282036 30948653 61897306 123794612 526127101 1052254202 2104508404