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159981875896 = 2319997734487
BaseRepresentation
bin1001010011111110101…
…0011011001010111000
3120021221102010100101211
42110333222123022320
510110120330012041
6201254502452504
714362333336153
oct2247752331270
9507842110354
10159981875896
1161936664267
1227009734134
13121175922bb
147a59356c9a
1542650ac481
hex253fa9b2b8

159981875896 has 8 divisors (see below), whose sum is σ = 299966017320. Its totient is φ = 79990937944.

The previous prime is 159981875881. The next prime is 159981875929. The reversal of 159981875896 is 698578189951.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9998867236 + ... + 9998867251.

It is an arithmetic number, because the mean of its divisors is an integer number (37495752165).

Almost surely, 2159981875896 is an apocalyptic number.

It is an amenable number.

159981875896 is a deficient number, since it is larger than the sum of its proper divisors (139984141424).

159981875896 is a wasteful number, since it uses less digits than its factorization.

159981875896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19997734493 (or 19997734489 counting only the distinct ones).

The product of its digits is 391910400, while the sum is 76.

The spelling of 159981875896 in words is "one hundred fifty-nine billion, nine hundred eighty-one million, eight hundred seventy-five thousand, eight hundred ninety-six".

Divisors: 1 2 4 8 19997734487 39995468974 79990937948 159981875896