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15020205401044 = 2230712231437623
BaseRepresentation
bin1101101010010010101000…
…0000011110001111010100
31222011220202221101002202101
43122210222000132033110
53432042340040313134
651540104225251444
73110113456234264
oct332445200361724
958156687332671
1015020205401044
114871040411428
121827024493b84
1384c526322b9c
1439cda61877a4
151b0a9b454e14
hexda92a01e3d4

15020205401044 has 12 divisors (see below), whose sum is σ = 26370979517344. Its totient is φ = 7485639824664.

The previous prime is 15020205401041. The next prime is 15020205401053. The reversal of 15020205401044 is 44010450202051.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15020205401041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6115717584 + ... + 6115720039.

Almost surely, 215020205401044 is an apocalyptic number.

It is an amenable number.

15020205401044 is a deficient number, since it is larger than the sum of its proper divisors (11350774116300).

15020205401044 is a wasteful number, since it uses less digits than its factorization.

15020205401044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12231437934 (or 12231437932 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 28.

Adding to 15020205401044 its reverse (44010450202051), we get a palindrome (59030655603095).

The spelling of 15020205401044 in words is "fifteen trillion, twenty billion, two hundred five million, four hundred one thousand, forty-four".

Divisors: 1 2 4 307 614 1228 12231437623 24462875246 48925750492 3755051350261 7510102700522 15020205401044