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55034144 = 2511156347
BaseRepresentation
bin1101000111110…
…0000100100000
310211120000122122
43101330010200
5103042043034
65243323412
71235532254
oct321740440
9124500578
1055034144
1129079a70
1216520568
13b52b8a9
147448264
154c7162e
hex347c120

55034144 has 24 divisors (see below), whose sum is σ = 118199088. Its totient is φ = 25015360.

The previous prime is 55034137. The next prime is 55034149. The reversal of 55034144 is 44143055.

It is not an unprimeable number, because it can be changed into a prime (55034149) 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, 77822 + ... + 78525.

It is an arithmetic number, because the mean of its divisors is an integer number (4924962).

Almost surely, 255034144 is an apocalyptic number.

It is an amenable number.

55034144 is an abundant number, since it is smaller than the sum of its proper divisors (63164944).

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

55034144 is a wasteful number, since it uses less digits than its factorization.

55034144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156368 (or 156360 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 55034144 is about 7418.5001179484. The cubic root of 55034144 is about 380.3739255599.

Adding to 55034144 its reverse (44143055), we get a palindrome (99177199).

The spelling of 55034144 in words is "fifty-five million, thirty-four thousand, one hundred forty-four".

Divisors: 1 2 4 8 11 16 22 32 44 88 176 352 156347 312694 625388 1250776 1719817 2501552 3439634 5003104 6879268 13758536 27517072 55034144