Search a number
-
+
79994448 = 24324312919
BaseRepresentation
bin1001100010010…
…01111001010000
312120112010202100
410301021321100
5130434310243
611534320400
71660640652
oct461117120
9176463670
1079994448
1141178016
1222959100
131375a9c1
14a8a46d2
1570520d3
hex4c49e50

79994448 has 60 divisors (see below), whose sum is σ = 229097440. Its totient is φ = 26042688.

The previous prime is 79994417. The next prime is 79994471. The reversal of 79994448 is 84449997.

It is a happy number.

It is a super-2 number, since 2×799944482 = 12798223421649408, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 79994394 and 79994403.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 268 + ... + 12651.

Almost surely, 279994448 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 79994448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114548720).

79994448 is an abundant number, since it is smaller than the sum of its proper divisors (149102992).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

79994448 is a wasteful number, since it uses less digits than its factorization.

79994448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12976 (or 12967 counting only the distinct ones).

The product of its digits is 2612736, while the sum is 54.

The square root of 79994448 is about 8943.9615383788. The cubic root of 79994448 is about 430.8769699246.

The spelling of 79994448 in words is "seventy-nine million, nine hundred ninety-four thousand, four hundred forty-eight".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 36 43 48 72 86 129 144 172 258 344 387 516 688 774 1032 1548 2064 3096 6192 12919 25838 38757 51676 77514 103352 116271 155028 206704 232542 310056 465084 555517 620112 930168 1111034 1666551 1860336 2222068 3333102 4444136 4999653 6666204 8888272 9999306 13332408 19998612 26664816 39997224 79994448