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1315230100040 = 235127541947777
BaseRepresentation
bin10011001000111001110…
…100101010101001001000
311122201211122110200211102
4103020321310222221020
5133022042401200130
62444113001320532
7164010425251403
oct23107164525110
94581748420742
101315230100040
1146787111582a
12192a97a96148
139704450915c
144792c188d3a
152432b03c645
hex13239d2aa48

1315230100040 has 64 divisors (see below), whose sum is σ = 2983181875200. Its totient is φ = 521842341888.

The previous prime is 1315230100013. The next prime is 1315230100043. The reversal of 1315230100040 is 400010325131.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 1315230099985 and 1315230100021.

It is not an unprimeable number, because it can be changed into a prime (1315230100043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27504632 + ... + 27552408.

It is an arithmetic number, because the mean of its divisors is an integer number (46612216800).

Almost surely, 21315230100040 is an apocalyptic number.

1315230100040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1315230100040 is an abundant number, since it is smaller than the sum of its proper divisors (1667951775160).

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

1315230100040 is a wasteful number, since it uses less digits than its factorization.

1315230100040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53334 (or 53330 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

Adding to 1315230100040 its reverse (400010325131), we get a palindrome (1715240425171).

The spelling of 1315230100040 in words is "one trillion, three hundred fifteen billion, two hundred thirty million, one hundred thousand, forty".

Divisors: 1 2 4 5 8 10 20 40 127 254 508 635 1016 1270 2540 5080 5419 10838 21676 27095 43352 47777 54190 95554 108380 191108 216760 238885 382216 477770 688213 955540 1376426 1911080 2752852 3441065 5505704 6067679 6882130 12135358 13764260 24270716 27528520 30338395 48541432 60676790 121353580 242707160 258903563 517807126 1035614252 1294517815 2071228504 2589035630 5178071260 10356142520 32880752501 65761505002 131523010004 164403762505 263046020008 328807525010 657615050020 1315230100040