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55149088 = 2517101377
BaseRepresentation
bin1101001001100…
…0001000100000
310211202212022211
43102120020200
5103104232323
65250011504
71236521341
oct322301040
9124685284
1055149088
1129148365
1216576b94
13b56bcc7
1474780c8
154c9570d
hex3498220

55149088 has 24 divisors (see below), whose sum is σ = 114962652. Its totient is φ = 25952256.

The previous prime is 55149067. The next prime is 55149089. The reversal of 55149088 is 88094155.

It can be written as a sum of positive squares in 2 ways, for example, as 46076944 + 9072144 = 6788^2 + 3012^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 55149088.

It is not an unprimeable number, because it can be changed into a prime (55149089) 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, 50145 + ... + 51232.

Almost surely, 255149088 is an apocalyptic number.

It is an amenable number.

55149088 is an abundant number, since it is smaller than the sum of its proper divisors (59813564).

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

55149088 is a wasteful number, since it uses less digits than its factorization.

55149088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101404 (or 101396 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 40.

The square root of 55149088 is about 7426.2431955869. The cubic root of 55149088 is about 380.6385570149.

The spelling of 55149088 in words is "fifty-five million, one hundred forty-nine thousand, eighty-eight".

Divisors: 1 2 4 8 16 17 32 34 68 136 272 544 101377 202754 405508 811016 1622032 1723409 3244064 3446818 6893636 13787272 27574544 55149088