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1317345144 = 233491111791
BaseRepresentation
bin100111010000101…
…0001011101111000
310101210211001210220
41032201101131320
510144220021034
6334415140040
744434151253
oct11641213570
93353731726
101317345144
116166749a5
12309214620
1317cbcbb8b
14c6d5809a
157a9b9749
hex4e851778

1317345144 has 32 divisors (see below), whose sum is σ = 3300099840. Its totient is φ = 438216800.

The previous prime is 1317345143. The next prime is 1317345167. The reversal of 1317345144 is 4415437131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1317345143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44112 + ... + 67679.

It is an arithmetic number, because the mean of its divisors is an integer number (103128120).

Almost surely, 21317345144 is an apocalyptic number.

It is an amenable number.

1317345144 is an abundant number, since it is smaller than the sum of its proper divisors (1982754696).

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

1317345144 is a wasteful number, since it uses less digits than its factorization.

1317345144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112291 (or 112287 counting only the distinct ones).

The product of its digits is 20160, while the sum is 33.

The square root of 1317345144 is about 36295.2496065256. The cubic root of 1317345144 is about 1096.2253940868.

The spelling of 1317345144 in words is "one billion, three hundred seventeen million, three hundred forty-five thousand, one hundred forty-four".

Divisors: 1 2 3 4 6 8 12 24 491 982 1473 1964 2946 3928 5892 11784 111791 223582 335373 447164 670746 894328 1341492 2682984 54889381 109778762 164668143 219557524 329336286 439115048 658672572 1317345144