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13820560490 = 2511569220811
BaseRepresentation
bin11001101111100010…
…10000010001101010
31022200011211012211202
430313301100101222
5211301030413430
610203222324202
7666325553162
oct146761202152
938604735752
1013820560490
115952389720
122818589662
1313c33a3159
149517275a2
1555d4dad45
hex337c5046a

13820560490 has 32 divisors (see below), whose sum is σ = 27186373440. Its totient is φ = 5016803200.

The previous prime is 13820560489. The next prime is 13820560511. The reversal of 13820560490 is 9406502831.

It is a happy number.

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, 47816 + ... + 172995.

It is an arithmetic number, because the mean of its divisors is an integer number (849574170).

Almost surely, 213820560490 is an apocalyptic number.

13820560490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13820560490 is a deficient number, since it is larger than the sum of its proper divisors (13365812950).

13820560490 is a wasteful number, since it uses less digits than its factorization.

13820560490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221398.

The product of its (nonzero) digits is 51840, while the sum is 38.

The spelling of 13820560490 in words is "thirteen billion, eight hundred twenty million, five hundred sixty thousand, four hundred ninety".

Divisors: 1 2 5 10 11 22 55 110 569 1138 2845 5690 6259 12518 31295 62590 220811 441622 1104055 2208110 2428921 4857842 12144605 24289210 125641459 251282918 628207295 1256414590 1382056049 2764112098 6910280245 13820560490