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1318408916 = 221129963839
BaseRepresentation
bin100111010010101…
…0101001011010100
310101212211010000212
41032211111023110
510200003041131
6334454024552
744446201526
oct11645251324
93355733025
101318408916
11617231150
12309648158
131801b2126
14c7153a16
157ab29a2b
hex4e9552d4

1318408916 has 12 divisors (see below), whose sum is σ = 2516962560. Its totient is φ = 599276760.

The previous prime is 1318408859. The next prime is 1318408969. The reversal of 1318408916 is 6198048131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14981876 + ... + 14981963.

It is an arithmetic number, because the mean of its divisors is an integer number (209746880).

Almost surely, 21318408916 is an apocalyptic number.

It is an amenable number.

1318408916 is a deficient number, since it is larger than the sum of its proper divisors (1198553644).

1318408916 is a wasteful number, since it uses less digits than its factorization.

1318408916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29963854 (or 29963852 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 41.

The square root of 1318408916 is about 36309.9010739495. The cubic root of 1318408916 is about 1096.5203864146.

The spelling of 1318408916 in words is "one billion, three hundred eighteen million, four hundred eight thousand, nine hundred sixteen".

Divisors: 1 2 4 11 22 44 29963839 59927678 119855356 329602229 659204458 1318408916