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20683927090 = 2513725915827
BaseRepresentation
bin10011010000110110…
…111010111000110010
31222101111110100211201
4103100312322320302
5314330041131330
613300240201414
71331365323301
oct232066727062
958344410751
1020683927090
1188545a0622
12401300926a
131c482aa218
141003078438
15810d15eca
hex4d0dbae32

20683927090 has 32 divisors (see below), whose sum is σ = 37523741184. Its totient is φ = 8208600960.

The previous prime is 20683927067. The next prime is 20683927111. The reversal of 20683927090 is 9072938602.

It is a self number, because there is not a number n which added to its sum of digits gives 20683927090.

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, 3546757 + ... + 3552583.

It is an arithmetic number, because the mean of its divisors is an integer number (1172616912).

Almost surely, 220683927090 is an apocalyptic number.

20683927090 is a deficient number, since it is larger than the sum of its proper divisors (16839814094).

20683927090 is a wasteful number, since it uses less digits than its factorization.

20683927090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8562.

The product of its (nonzero) digits is 326592, while the sum is 46.

The spelling of 20683927090 in words is "twenty billion, six hundred eighty-three million, nine hundred twenty-seven thousand, ninety".

Divisors: 1 2 5 10 137 274 685 1370 2591 5182 5827 11654 12955 25910 29135 58270 354967 709934 798299 1596598 1774835 3549670 3991495 7982990 15097757 30195514 75488785 150977570 2068392709 4136785418 10341963545 20683927090