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388103630142 = 23294987447259
BaseRepresentation
bin1011010010111001100…
…01110110110100111110
31101002202121110011110210
411221130301312310332
522324314012131032
6454143051413250
740016366265654
oct5513461666476
91332677404423
10388103630142
1113a659421678
1263273154226
132a7a0abb737
1414ada23cdd4
15a1672e82cc
hex5a5cc76d3e

388103630142 has 32 divisors (see below), whose sum is σ = 803135836800. Its totient is φ = 124881589728.

The previous prime is 388103630071. The next prime is 388103630147. The reversal of 388103630142 is 241036301883.

It is a self number, because there is not a number n which added to its sum of digits gives 388103630142.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (388103630147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 644109 + ... + 1091367.

It is an arithmetic number, because the mean of its divisors is an integer number (25097994900).

Almost surely, 2388103630142 is an apocalyptic number.

388103630142 is an abundant number, since it is smaller than the sum of its proper divisors (415032206658).

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

388103630142 is a wasteful number, since it uses less digits than its factorization.

388103630142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 452280.

The product of its (nonzero) digits is 82944, while the sum is 39.

The spelling of 388103630142 in words is "three hundred eighty-eight billion, one hundred three million, six hundred thirty thousand, one hundred forty-two".

Divisors: 1 2 3 6 29 58 87 174 4987 9974 14961 29922 144623 289246 433869 447259 867738 894518 1341777 2683554 12970511 25941022 38911533 77823066 2230480633 4460961266 6691441899 13382883798 64683938357 129367876714 194051815071 388103630142