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387538620676 = 22107229092
BaseRepresentation
bin1011010001110110001…
…10100001000100000100
31101001022020021201012021
411220323012201010010
522322134341330201
6454011025332524
736666365632024
oct5507306410404
91331266251167
10387538620676
1113a3994a26a9
1263135a97144
132a710a244cc
1414a851a3a84
15a1328dcea1
hex5a3b1a1104

387538620676 has 27 divisors (see below), whose sum is σ = 684825486709. Its totient is φ = 191892394448.

The previous prime is 387538620661. The next prime is 387538620683. The reversal of 387538620676 is 676026835783.

The square root of 387538620676 is 622526.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 336082235076 + 51456385600 = 579726^2 + 226840^2 .

It is a super-2 number, since 2×3875386206762 (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 133219110 + ... + 133222018.

Almost surely, 2387538620676 is an apocalyptic number.

387538620676 is the 622526-th square number.

It is an amenable number.

387538620676 is a deficient number, since it is larger than the sum of its proper divisors (297286866033).

387538620676 is an frugal number, since it uses more digits than its factorization.

387538620676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6036 (or 3018 counting only the distinct ones).

The product of its (nonzero) digits is 60963840, while the sum is 61.

The spelling of 387538620676 in words is "three hundred eighty-seven billion, five hundred thirty-eight million, six hundred twenty thousand, six hundred seventy-six".

Divisors: 1 2 4 107 214 428 2909 5818 11449 11636 22898 45796 311263 622526 1245052 8462281 16924562 33305141 33849124 66610282 133220564 905464067 1810928134 3621856268 96884655169 193769310338 387538620676