Search a number
-
+
19108824452 = 2231181185093
BaseRepresentation
bin10001110010111110…
…011000010110000100
31211022201121212012222
4101302332120112010
5303113324340302
612440052231512
71244351220314
oct216276302604
954281555188
1019108824452
118116484703
12385360b598
131a56b80a23
14cd3bc5444
1576c8d3da2
hex472f98584

19108824452 has 24 divisors (see below), whose sum is σ = 34538633472. Its totient is φ = 9240991200.

The previous prime is 19108824431. The next prime is 19108824461. The reversal of 19108824452 is 25442880191.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 182018 + ... + 267110.

It is an arithmetic number, because the mean of its divisors is an integer number (1439109728).

Almost surely, 219108824452 is an apocalyptic number.

It is an amenable number.

19108824452 is a deficient number, since it is larger than the sum of its proper divisors (15429809020).

19108824452 is a wasteful number, since it uses less digits than its factorization.

19108824452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86939 (or 86937 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 44.

The spelling of 19108824452 in words is "nineteen billion, one hundred eight million, eight hundred twenty-four thousand, four hundred fifty-two".

Divisors: 1 2 4 31 62 124 1811 3622 7244 56141 85093 112282 170186 224564 340372 2637883 5275766 10551532 154103423 308206846 616413692 4777206113 9554412226 19108824452