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13421846560 = 255465718013
BaseRepresentation
bin11001000000000000…
…10010000000100000
31021122101120110011011
430200000102000200
5204441443042220
610055500430304
7653414545663
oct144000220040
937571513134
1013421846560
115768311a81
122726b48394
13135b8c2055
149147b96da
155384cd65a
hex320012020

13421846560 has 48 divisors (see below), whose sum is σ = 31717682136. Its totient is φ = 5367287808.

The previous prime is 13421846549. The next prime is 13421846567. The reversal of 13421846560 is 6564812431.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 11179255824 + 2242590736 = 105732^2 + 47356^2 .

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (13421846567) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 736114 + ... + 754126.

Almost surely, 213421846560 is an apocalyptic number.

13421846560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13421846560 is an abundant number, since it is smaller than the sum of its proper divisors (18295835576).

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

13421846560 is a wasteful number, since it uses less digits than its factorization.

13421846560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22685 (or 22677 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 40.

The spelling of 13421846560 in words is "thirteen billion, four hundred twenty-one million, eight hundred forty-six thousand, five hundred sixty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 160 4657 9314 18013 18628 23285 36026 37256 46570 72052 74512 90065 93140 144104 149024 180130 186280 288208 360260 372560 576416 720520 745120 1441040 2882080 83886541 167773082 335546164 419432705 671092328 838865410 1342184656 1677730820 2684369312 3355461640 6710923280 13421846560