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15101420145 = 3571427100787
BaseRepresentation
bin11100001000001110…
…10110001001110001
31102222102222121222020
432010013112021301
5221411430421040
610534255502053
71043140644660
oct160407261161
942872877866
1015101420145
11644a3a3519
122b15527929
131568869086
14a338a4dd7
155d5b99cd0
hex3841d6271

15101420145 has 32 divisors (see below), whose sum is σ = 27633650688. Its totient is φ = 6898600128.

The previous prime is 15101420123. The next prime is 15101420171. The reversal of 15101420145 is 54102410151.

It is not a de Polignac number, because 15101420145 - 211 = 15101418097 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, 99442 + ... + 200228.

It is an arithmetic number, because the mean of its divisors is an integer number (863551584).

Almost surely, 215101420145 is an apocalyptic number.

15101420145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

15101420145 is a deficient number, since it is larger than the sum of its proper divisors (12532230543).

15101420145 is a wasteful number, since it uses less digits than its factorization.

15101420145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102229.

The product of its (nonzero) digits is 800, while the sum is 24.

Adding to 15101420145 its reverse (54102410151), we get a palindrome (69203830296).

The spelling of 15101420145 in words is "fifteen billion, one hundred one million, four hundred twenty thousand, one hundred forty-five".

Divisors: 1 3 5 7 15 21 35 105 1427 4281 7135 9989 21405 29967 49945 100787 149835 302361 503935 705509 1511805 2116527 3527545 10582635 143823049 431469147 719115245 1006761343 2157345735 3020284029 5033806715 15101420145