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161648033124 = 22337907355361
BaseRepresentation
bin1001011010001011111…
…0010011110101100100
3120110020112021220102210
42112202332103311210
510122023344024444
6202132102203420
714451534416334
oct2264276236544
9513215256383
10161648033124
1162611111906
12273b3723570
131232181c756
147b7674d0c4
1543114c87b9
hex25a2f93d64

161648033124 has 24 divisors (see below), whose sum is σ = 377189755488. Its totient is φ = 53881104640.

The previous prime is 161648033101. The next prime is 161648033143. The reversal of 161648033124 is 421330846161.

It is a happy number.

161648033124 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1616480331242 (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 277204 + ... + 632564.

It is an arithmetic number, because the mean of its divisors is an integer number (15716239812).

Almost surely, 2161648033124 is an apocalyptic number.

It is an amenable number.

161648033124 is an abundant number, since it is smaller than the sum of its proper divisors (215541722364).

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

161648033124 is a wasteful number, since it uses less digits than its factorization.

161648033124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393275 (or 393273 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 39.

Adding to 161648033124 its reverse (421330846161), we get a palindrome (582978879285).

The spelling of 161648033124 in words is "one hundred sixty-one billion, six hundred forty-eight million, thirty-three thousand, one hundred twenty-four".

Divisors: 1 2 3 4 6 12 37907 75814 113721 151628 227442 355361 454884 710722 1066083 1421444 2132166 4264332 13470669427 26941338854 40412008281 53882677708 80824016562 161648033124