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137382565818 = 2323398270791
BaseRepresentation
bin111111111110010100…
…0111001011110111010
3111010121102112110001110
41333330220321132322
54222324414101233
6143040201101150
712632316353601
oct1777450713672
9433542473043
10137382565818
11532999710a3
12227611877b6
13cc55526784
146913b6ca38
15389104a663
hex1ffca397ba

137382565818 has 16 divisors (see below), whose sum is σ = 275944383936. Its totient is φ = 45597646560.

The previous prime is 137382565777. The next prime is 137382565909. The reversal of 137382565818 is 818565283731.

It is a Curzon number.

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, 49133998 + ... + 49136793.

It is an arithmetic number, because the mean of its divisors is an integer number (17246523996).

Almost surely, 2137382565818 is an apocalyptic number.

137382565818 is an abundant number, since it is smaller than the sum of its proper divisors (138561818118).

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

137382565818 is a wasteful number, since it uses less digits than its factorization.

137382565818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98271029.

The product of its digits is 9676800, while the sum is 57.

The spelling of 137382565818 in words is "one hundred thirty-seven billion, three hundred eighty-two million, five hundred sixty-five thousand, eight hundred eighteen".

Divisors: 1 2 3 6 233 466 699 1398 98270791 196541582 294812373 589624746 22897094303 45794188606 68691282909 137382565818