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138341345512 = 23195915426109
BaseRepresentation
bin1000000011010111001…
…0010110100011101000
3111020002020122111112111
42000311302112203220
54231310341024022
6143315251052104
712665141014636
oct2006562264350
9436066574474
10138341345512
11537410a0507
122298a2a1034
1310079060836
1469a522a356
1538ea2d8477
hex2035c968e8

138341345512 has 32 divisors (see below), whose sum is σ = 277669980000. Its totient is φ = 64419427008.

The previous prime is 138341345509. The next prime is 138341345537. The reversal of 138341345512 is 215543143831.

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, 7704087 + ... + 7722022.

It is an arithmetic number, because the mean of its divisors is an integer number (8677186875).

Almost surely, 2138341345512 is an apocalyptic number.

It is an amenable number.

138341345512 is an abundant number, since it is smaller than the sum of its proper divisors (139328634488).

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

138341345512 is a wasteful number, since it uses less digits than its factorization.

138341345512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15426193 (or 15426189 counting only the distinct ones).

The product of its digits is 172800, while the sum is 40.

The spelling of 138341345512 in words is "one hundred thirty-eight billion, three hundred forty-one million, three hundred forty-five thousand, five hundred twelve".

Divisors: 1 2 4 8 19 38 59 76 118 152 236 472 1121 2242 4484 8968 15426109 30852218 61704436 123408872 293096071 586192142 910140431 1172384284 1820280862 2344768568 3640561724 7281123448 17292668189 34585336378 69170672756 138341345512