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20580077042 = 272818152163
BaseRepresentation
bin10011001010101010…
…110000110111110010
31222010021001020100122
4103022222300313302
5314121444431132
613242050250242
71325664524420
oct231252606762
958107036318
1020580077042
118800a0a538
123ba4286982
131c2c9191a5
14dd3364110
15806b50912
hex4caab0df2

20580077042 has 16 divisors (see below), whose sum is σ = 35282060352. Its totient is φ = 8819550960.

The previous prime is 20580077033. The next prime is 20580077053. The reversal of 20580077042 is 24077008502.

It is a junction number, because it is equal to n+sod(n) for n = 20580076993 and 20580077011.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 368453 + ... + 420615.

It is an arithmetic number, because the mean of its divisors is an integer number (2205128772).

Almost surely, 220580077042 is an apocalyptic number.

20580077042 is a deficient number, since it is larger than the sum of its proper divisors (14701983310).

20580077042 is a wasteful number, since it uses less digits than its factorization.

20580077042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80353.

The product of its (nonzero) digits is 31360, while the sum is 35.

The spelling of 20580077042 in words is "twenty billion, five hundred eighty million, seventy-seven thousand, forty-two".

Divisors: 1 2 7 14 28181 52163 56362 104326 197267 365141 394534 730282 1470005503 2940011006 10290038521 20580077042