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389777885060 = 22519488894253
BaseRepresentation
bin1011010110000001001…
…00101000011110000100
31101021002021212010110012
411223000210220132010
522341231114310220
6455021140445352
740106026233434
oct5530044503604
91337067763405
10389777885060
11140338500123
126365b9a9858
132a9a9922915
1414c187422c4
15a2142b3ac5
hex5ac0928784

389777885060 has 12 divisors (see below), whose sum is σ = 818533558668. Its totient is φ = 155911154016.

The previous prime is 389777885027. The next prime is 389777885117. The reversal of 389777885060 is 60588777983.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 124198446724 + 265579438336 = 352418^2 + 515344^2 .

It is a hoax number, since the sum of its digits (68) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9744447107 + ... + 9744447146.

It is an arithmetic number, because the mean of its divisors is an integer number (68211129889).

Almost surely, 2389777885060 is an apocalyptic number.

It is an amenable number.

389777885060 is an abundant number, since it is smaller than the sum of its proper divisors (428755673608).

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

389777885060 is a wasteful number, since it uses less digits than its factorization.

389777885060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19488894262 (or 19488894260 counting only the distinct ones).

The product of its (nonzero) digits is 142248960, while the sum is 68.

The spelling of 389777885060 in words is "three hundred eighty-nine billion, seven hundred seventy-seven million, eight hundred eighty-five thousand, sixty".

Divisors: 1 2 4 5 10 20 19488894253 38977788506 77955577012 97444471265 194888942530 389777885060