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5511980 = 225275599
BaseRepresentation
bin10101000001101100101100
3101101001000102
4111001230230
52402340410
6314050232
764564625
oct25015454
911331012
105511980
113125261
121a19978
1311acb36
14a36a4c
1573d2a5
hex541b2c

5511980 has 12 divisors (see below), whose sum is σ = 11575200. Its totient is φ = 2204784.

The previous prime is 5511977. The next prime is 5511983. The reversal of 5511980 is 891155.

It is an interprime number because it is at equal distance from previous prime (5511977) and next prime (5511983).

It is not an unprimeable number, because it can be changed into a prime (5511983) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 137780 + ... + 137819.

It is an arithmetic number, because the mean of its divisors is an integer number (964600).

Almost surely, 25511980 is an apocalyptic number.

It is an amenable number.

5511980 is an abundant number, since it is smaller than the sum of its proper divisors (6063220).

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

5511980 is a wasteful number, since it uses less digits than its factorization.

5511980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275608 (or 275606 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 29.

The square root of 5511980 is about 2347.7606351585. The cubic root of 5511980 is about 176.6454861677.

The spelling of 5511980 in words is "five million, five hundred eleven thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 20 275599 551198 1102396 1377995 2755990 5511980