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20690703176 = 23111318086279
BaseRepresentation
bin10011010001010000…
…110001001101001000
31222101222012121212212
4103101100301031020
5314333310000201
613301041324252
71331510034533
oct232120611510
958358177785
1020690703176
1188583a95a0
124015336688
131c49810540
141003d1da1a
15811703abb
hex4d1431348

20690703176 has 32 divisors (see below), whose sum is σ = 45577425600. Its totient is φ = 8681413440.

The previous prime is 20690703157. The next prime is 20690703203. The reversal of 20690703176 is 67130709602.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9041996 + ... + 9044283.

It is an arithmetic number, because the mean of its divisors is an integer number (1424294550).

Almost surely, 220690703176 is an apocalyptic number.

20690703176 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

20690703176 is an abundant number, since it is smaller than the sum of its proper divisors (24886722424).

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

20690703176 is a wasteful number, since it uses less digits than its factorization.

20690703176 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18086309 (or 18086305 counting only the distinct ones).

The product of its (nonzero) digits is 95256, while the sum is 41.

The spelling of 20690703176 in words is "twenty billion, six hundred ninety million, seven hundred three thousand, one hundred seventy-six".

Divisors: 1 2 4 8 11 13 22 26 44 52 88 104 143 286 572 1144 18086279 36172558 72345116 144690232 198949069 235121627 397898138 470243254 795796276 940486508 1591592552 1880973016 2586337897 5172675794 10345351588 20690703176