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389201545012 = 227371487252641
BaseRepresentation
bin1011010100111100011…
…10000100011100110100
31101012121010101000112111
411222132032010130310
522334041043420022
6454444031500404
740055530355650
oct5523616043464
91335533330474
10389201545012
11140072142335
126351a987704
132a9173bc2c7
1414ba1d97a60
15a1cd8bb477
hex5a9e384734

389201545012 has 48 divisors (see below), whose sum is σ = 799981797888. Its totient is φ = 162182753280.

The previous prime is 389201544983. The next prime is 389201545013. The reversal of 389201545012 is 210545102983.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389201545013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1414212 + ... + 1666852.

It is an arithmetic number, because the mean of its divisors is an integer number (16666287456).

Almost surely, 2389201545012 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 389201545012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (399990898944).

389201545012 is an abundant number, since it is smaller than the sum of its proper divisors (410780252876).

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

389201545012 is a wasteful number, since it uses less digits than its factorization.

389201545012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254176 (or 254174 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 40.

Adding to 389201545012 its reverse (210545102983), we get a palindrome (599746647995).

The spelling of 389201545012 in words is "three hundred eighty-nine billion, two hundred one million, five hundred forty-five thousand, twelve".

Divisors: 1 2 4 7 14 28 37 74 148 259 518 1036 1487 2974 5948 10409 20818 41636 55019 110038 220076 252641 385133 505282 770266 1010564 1540532 1768487 3536974 7073948 9347717 18695434 37390868 65434019 130868038 261736076 375677167 751354334 1502708668 2629740169 5259480338 10518960676 13900055179 27800110358 55600220716 97300386253 194600772506 389201545012