Search a number
-
+
102161112654 = 23191117802283
BaseRepresentation
bin101111100100101000…
…1101101111001001110
3100202200210011020111010
41133021101231321032
53133211221101104
6114533203110050
710244435062326
oct1371121557116
9322623136433
10102161112654
113a365315017
1217971672326
139831476b23
144d32098286
1529cdd24489
hex17c946de4e

102161112654 has 32 divisors (see below), whose sum is σ = 215268842880. Its totient is φ = 32232481632.

The previous prime is 102161112619. The next prime is 102161112701. The reversal of 102161112654 is 456211161201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 273804 + ... + 528479.

It is an arithmetic number, because the mean of its divisors is an integer number (6727151340).

Almost surely, 2102161112654 is an apocalyptic number.

102161112654 is an abundant number, since it is smaller than the sum of its proper divisors (113107730226).

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

102161112654 is a wasteful number, since it uses less digits than its factorization.

102161112654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 803424.

The product of its (nonzero) digits is 2880, while the sum is 30.

Adding to 102161112654 its reverse (456211161201), we get a palindrome (558372273855).

The spelling of 102161112654 in words is "one hundred two billion, one hundred sixty-one million, one hundred twelve thousand, six hundred fifty-four".

Divisors: 1 2 3 6 19 38 57 114 1117 2234 3351 6702 21223 42446 63669 127338 802283 1604566 2406849 4813698 15243377 30486754 45730131 91460262 896150111 1792300222 2688450333 5376900666 17026852109 34053704218 51080556327 102161112654