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55132760 = 2351378319
BaseRepresentation
bin1101001001010…
…0001001011000
310211202000221002
43102110021120
5103103222020
65245404132
71236422624
oct322241130
9124660832
1055132760
1129137071
1216569648
13b564747
147472184
154c90975
hex3494258

55132760 has 16 divisors (see below), whose sum is σ = 124048800. Its totient is φ = 22053088.

The previous prime is 55132747. The next prime is 55132789. The reversal of 55132760 is 6723155.

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, 689120 + ... + 689199.

It is an arithmetic number, because the mean of its divisors is an integer number (7753050).

Almost surely, 255132760 is an apocalyptic number.

It is an amenable number.

55132760 is an abundant number, since it is smaller than the sum of its proper divisors (68916040).

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

55132760 is a wasteful number, since it uses less digits than its factorization.

55132760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1378330 (or 1378326 counting only the distinct ones).

The product of its (nonzero) digits is 6300, while the sum is 29.

The square root of 55132760 is about 7425.1437696519. The cubic root of 55132760 is about 380.6009880659.

The spelling of 55132760 in words is "fifty-five million, one hundred thirty-two thousand, seven hundred sixty".

Divisors: 1 2 4 5 8 10 20 40 1378319 2756638 5513276 6891595 11026552 13783190 27566380 55132760