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2103550115031 = 321943286080527
BaseRepresentation
bin11110100111000101010…
…110110111110011010111
321110002122000122201111200
4132213011112313303113
5233431032312140111
64250205123203543
7304655634650121
oct36470526676327
97402560581450
102103550115031
11741124222952
1229b8228165b3
13123496708ca1
1473b531d6211
1539ab8c23256
hex1e9c55b7cd7

2103550115031 has 24 divisors (see below), whose sum is σ = 3272761240320. Its totient is φ = 1297661265936.

The previous prime is 2103550114997. The next prime is 2103550115083. The reversal of 2103550115031 is 1305110553012.

2103550115031 is a `hidden beast` number, since 2 + 1 + 0 + 3 + 5 + 501 + 150 + 3 + 1 = 666.

It is not a de Polignac number, because 2103550115031 - 219 = 2103549590743 is a prime.

It is a super-2 number, since 2×21035501150312 (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2103550114986 and 2103550115004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2103550115431) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 143032911 + ... + 143047616.

It is an arithmetic number, because the mean of its divisors is an integer number (136365051680).

Almost surely, 22103550115031 is an apocalyptic number.

2103550115031 is a deficient number, since it is larger than the sum of its proper divisors (1169211125289).

2103550115031 is a wasteful number, since it uses less digits than its factorization.

2103550115031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286080595 (or 286080592 counting only the distinct ones).

The product of its (nonzero) digits is 2250, while the sum is 27.

Adding to 2103550115031 its reverse (1305110553012), we get a palindrome (3408660668043).

The spelling of 2103550115031 in words is "two trillion, one hundred three billion, five hundred fifty million, one hundred fifteen thousand, thirty-one".

Divisors: 1 3 9 19 43 57 129 171 387 817 2451 7353 286080527 858241581 2574724743 5435530013 12301462661 16306590039 36904387983 48919770117 110713163949 233727790559 701183371677 2103550115031