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5561790 = 2351321097
BaseRepresentation
bin10101001101110110111110
3101110120100020
4111031312332
52410434130
6315113010
765163063
oct25156676
911416306
105561790
113159723
121a42766
1311c9700
14a4ac6a
1574ce10
hex54ddbe

5561790 has 48 divisors (see below), whose sum is σ = 14467248. Its totient is φ = 1367808.

The previous prime is 5561779. The next prime is 5561819. The reversal of 5561790 is 971655.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4522 + ... + 5618.

It is an arithmetic number, because the mean of its divisors is an integer number (301401).

Almost surely, 25561790 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5561790, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7233624).

5561790 is an abundant number, since it is smaller than the sum of its proper divisors (8905458).

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

5561790 is a wasteful number, since it uses less digits than its factorization.

5561790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1133 (or 1120 counting only the distinct ones).

The product of its (nonzero) digits is 9450, while the sum is 33.

The square root of 5561790 is about 2358.3447585118. The cubic root of 5561790 is about 177.1759876218.

It can be divided in two parts, 556 and 1790, that added together give a triangular number (2346 = T68).

The spelling of 5561790 in words is "five million, five hundred sixty-one thousand, seven hundred ninety".

Divisors: 1 2 3 5 6 10 13 15 26 30 39 65 78 130 169 195 338 390 507 845 1014 1097 1690 2194 2535 3291 5070 5485 6582 10970 14261 16455 28522 32910 42783 71305 85566 142610 185393 213915 370786 427830 556179 926965 1112358 1853930 2780895 5561790