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55141530 = 2351838051
BaseRepresentation
bin1101001001011…
…0010010011010
310211202110221220
43102112102122
5103104012110
65245512510
71236460323
oct322262232
9124673856
1055141530
1129142714
1216572736
13b568732
14747544a
154c93370
hex349649a

55141530 has 16 divisors (see below), whose sum is σ = 132339744. Its totient is φ = 14704400.

The previous prime is 55141519. The next prime is 55141531. The reversal of 55141530 is 3514155.

It is a self number, because there is not a number n which added to its sum of digits gives 55141530.

It is not an unprimeable number, because it can be changed into a prime (55141531) 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, 918996 + ... + 919055.

It is an arithmetic number, because the mean of its divisors is an integer number (8271234).

Almost surely, 255141530 is an apocalyptic number.

55141530 is an abundant number, since it is smaller than the sum of its proper divisors (77198214).

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

55141530 is a wasteful number, since it uses less digits than its factorization.

55141530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1838061.

The product of its (nonzero) digits is 1500, while the sum is 24.

The square root of 55141530 is about 7425.7343071241. The cubic root of 55141530 is about 380.6211678023.

Adding to 55141530 its reverse (3514155), we get a palindrome (58655685).

The spelling of 55141530 in words is "fifty-five million, one hundred forty-one thousand, five hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 1838051 3676102 5514153 9190255 11028306 18380510 27570765 55141530