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3620768080 = 24545259601
BaseRepresentation
bin1101011111010000…
…1000100101010000
3100100100010002001111
43113310020211100
524403404034310
61355141343104
7155504010106
oct32764104520
910310102044
103620768080
111598913716
12850707a94
134591a2027
14264c37c76
15162d1528a
hexd7d08950

3620768080 has 20 divisors (see below), whose sum is σ = 8418285972. Its totient is φ = 1448307200.

The previous prime is 3620768071. The next prime is 3620768111. The reversal of 3620768080 is 808670263.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1432773904 + 2187994176 = 37852^2 + 46776^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×36207680802 = 26219922978293772800, which contains 22 as substring.

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

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, 22629721 + ... + 22629880.

Almost surely, 23620768080 is an apocalyptic number.

It is an amenable number.

3620768080 is an abundant number, since it is smaller than the sum of its proper divisors (4797517892).

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

3620768080 is a wasteful number, since it uses less digits than its factorization.

3620768080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45259614 (or 45259608 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 3620768080 is about 60172.8184481997. The cubic root of 3620768080 is about 1535.5603962061.

The spelling of 3620768080 in words is "three billion, six hundred twenty million, seven hundred sixty-eight thousand, eighty".

Divisors: 1 2 4 5 8 10 16 20 40 80 45259601 90519202 181038404 226298005 362076808 452596010 724153616 905192020 1810384040 3620768080