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159944292 = 22324442897
BaseRepresentation
bin10011000100010…
…00111001100100
3102010222000022200
421202020321210
5311421204132
623512054500
73651334614
oct1142107144
9363860280
10159944292
1182314572
1245694430
13271a12c1
1417356a44
15e095d7c
hex9888e64

159944292 has 18 divisors (see below), whose sum is σ = 404303718. Its totient is φ = 53314752.

The previous prime is 159944273. The next prime is 159944329. The reversal of 159944292 is 292449951.

It can be written as a sum of positive squares in only one way, i.e., 126697536 + 33246756 = 11256^2 + 5766^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2221413 + ... + 2221484.

Almost surely, 2159944292 is an apocalyptic number.

159944292 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

159944292 is an abundant number, since it is smaller than the sum of its proper divisors (244359426).

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

159944292 is a wasteful number, since it uses less digits than its factorization.

159944292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4442907 (or 4442902 counting only the distinct ones).

The product of its digits is 233280, while the sum is 45.

The square root of 159944292 is about 12646.9083969166. The cubic root of 159944292 is about 542.8205098483.

The spelling of 159944292 in words is "one hundred fifty-nine million, nine hundred forty-four thousand, two hundred ninety-two".

Divisors: 1 2 3 4 6 9 12 18 36 4442897 8885794 13328691 17771588 26657382 39986073 53314764 79972146 159944292