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20675764195 = 513946763703
BaseRepresentation
bin10011010000010111…
…110001111111100011
31222100221002122110021
4103100113301333203
5314320443423240
613255345214311
71331236044622
oct232027617743
958327078407
1020675764195
11884aa25729
124010331397
131c466ac8c8
141001d516b9
1581025254a
hex4d05f1fe3

20675764195 has 16 divisors (see below), whose sum is σ = 25043316480. Its totient is φ = 16386192864.

The previous prime is 20675764183. The next prime is 20675764301. The reversal of 20675764195 is 59146757602.

It is a cyclic number.

It is not a de Polignac number, because 20675764195 - 29 = 20675763683 is a prime.

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, 292714 + ... + 356416.

It is an arithmetic number, because the mean of its divisors is an integer number (1565207280).

Almost surely, 220675764195 is an apocalyptic number.

20675764195 is a deficient number, since it is larger than the sum of its proper divisors (4367552285).

20675764195 is a wasteful number, since it uses less digits than its factorization.

20675764195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64314.

The product of its (nonzero) digits is 3175200, while the sum is 52.

The spelling of 20675764195 in words is "twenty billion, six hundred seventy-five million, seven hundred sixty-four thousand, one hundred ninety-five".

Divisors: 1 5 139 467 695 2335 63703 64913 318515 324565 8854717 29749301 44273585 148746505 4135152839 20675764195