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102530411555 = 51113509928123
BaseRepresentation
bin101111101111101001…
…0011110110000100011
3100210122112001120100012
41133133102132300203
53134440241132210
6115033554315135
710256541055445
oct1373722366043
9323575046305
10102530411555
113a534820820
1217a55288aab
13988cb292a0
144d6914a495
152a01471305
hex17df49ec23

102530411555 has 32 divisors (see below), whose sum is σ = 144579859200. Its totient is φ = 68815658880.

The previous prime is 102530411549. The next prime is 102530411587. The reversal of 102530411555 is 555114035201.

It is not a de Polignac number, because 102530411555 - 24 = 102530411539 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3631724 + ... + 3659846.

It is an arithmetic number, because the mean of its divisors is an integer number (4518120600).

Almost surely, 2102530411555 is an apocalyptic number.

102530411555 is a deficient number, since it is larger than the sum of its proper divisors (42049447645).

102530411555 is a wasteful number, since it uses less digits than its factorization.

102530411555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33251.

The product of its (nonzero) digits is 15000, while the sum is 32.

Adding to 102530411555 its reverse (555114035201), we get a palindrome (657644446756).

The spelling of 102530411555 in words is "one hundred two billion, five hundred thirty million, four hundred eleven thousand, five hundred fifty-five".

Divisors: 1 5 11 13 55 65 143 715 5099 25495 28123 56089 66287 140615 280445 309353 331435 365599 729157 1546765 1827995 3645785 4021589 20107945 143399177 716995885 1577390947 1864189301 7886954735 9320946505 20506082311 102530411555