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1318119424 = 211798147
BaseRepresentation
bin100111010010000…
…1110100000000000
310101212021101220221
41032210032200000
510144414310144
6334443512424
744443554526
oct11644164000
93355241827
101318119424
116170536a6
12309528714
1318011042b
14c70ba316
157aabdd84
hex4e90e800

1318119424 has 48 divisors (see below), whose sum is σ = 2669284800. Its totient is φ = 650637312.

The previous prime is 1318119421. The next prime is 1318119427. The reversal of 1318119424 is 4249118131.

It is an interprime number because it is at equal distance from previous prime (1318119421) and next prime (1318119427).

It is a self number, because there is not a number n which added to its sum of digits gives 1318119424.

It is not an unprimeable number, because it can be changed into a prime (1318119421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 157719 + ... + 165865.

It is an arithmetic number, because the mean of its divisors is an integer number (55610100).

Almost surely, 21318119424 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 1318119424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1334642400).

1318119424 is an abundant number, since it is smaller than the sum of its proper divisors (1351165376).

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

1318119424 is an frugal number, since it uses more digits than its factorization.

1318119424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8248 (or 8228 counting only the distinct ones).

The product of its digits is 6912, while the sum is 34.

The square root of 1318119424 is about 36305.9144493015. The cubic root of 1318119424 is about 1096.4401237301.

The spelling of 1318119424 in words is "one billion, three hundred eighteen million, one hundred nineteen thousand, four hundred twenty-four".

Divisors: 1 2 4 8 16 32 64 79 128 158 256 316 512 632 1024 1264 2048 2528 5056 8147 10112 16294 20224 32588 40448 65176 80896 130352 161792 260704 521408 643613 1042816 1287226 2085632 2574452 4171264 5148904 8342528 10297808 16685056 20595616 41191232 82382464 164764928 329529856 659059712 1318119424