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680922142 = 21931764047
BaseRepresentation
bin101000100101100…
…000110000011110
31202110021102120121
4220211200300132
52343304002032
6151322305154
722605512515
oct5045406036
91673242517
10680922142
1131a3a997a
121700581ba
13ab0bc914
146660d67c
153eba4a97
hex28960c1e

680922142 has 8 divisors (see below), whose sum is σ = 1026675936. Its totient is φ = 338696832.

The previous prime is 680922119. The next prime is 680922197. The reversal of 680922142 is 241229086.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 680922098 and 680922107.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 881638 + ... + 882409.

It is an arithmetic number, because the mean of its divisors is an integer number (128334492).

Almost surely, 2680922142 is an apocalyptic number.

680922142 is a deficient number, since it is larger than the sum of its proper divisors (345753794).

680922142 is a wasteful number, since it uses less digits than its factorization.

680922142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1764242.

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 680922142 is about 26094.4848962381. The cubic root of 680922142 is about 879.7632550129.

The spelling of 680922142 in words is "six hundred eighty million, nine hundred twenty-two thousand, one hundred forty-two".

Divisors: 1 2 193 386 1764047 3528094 340461071 680922142