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159921679916 = 22238011679779
BaseRepresentation
bin1001010011110000010…
…0110010111000101100
3120021210012212002001002
42110330010302320230
510110004422224131
6201244512335432
714361002564525
oct2247404627054
9507705762032
10159921679916
116190568a119
1226bb1544578
1312107c7708b
147a5136784c
15425eb6b6cb
hex253c132e2c

159921679916 has 12 divisors (see below), whose sum is σ = 279874864920. Its totient is φ = 79957432800.

The previous prime is 159921679903. The next prime is 159921679919. The reversal of 159921679916 is 619976129951.

It is not an unprimeable number, because it can be changed into a prime (159921679919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 744686 + ... + 935093.

It is an arithmetic number, because the mean of its divisors is an integer number (23322905410).

Almost surely, 2159921679916 is an apocalyptic number.

It is an amenable number.

159921679916 is a deficient number, since it is larger than the sum of its proper divisors (119953185004).

159921679916 is a wasteful number, since it uses less digits than its factorization.

159921679916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1703584 (or 1703582 counting only the distinct ones).

The product of its digits is 16533720, while the sum is 65.

The spelling of 159921679916 in words is "one hundred fifty-nine billion, nine hundred twenty-one million, six hundred seventy-nine thousand, nine hundred sixteen".

Divisors: 1 2 4 23801 47602 95204 1679779 3359558 6719116 39980419979 79960839958 159921679916