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55087104 = 21234483
BaseRepresentation
bin1101001000100…
…1000000000000
310211122201022010
43102021000000
5103100241404
65244412520
71236142542
oct322110000
9124581263
1055087104
1129105836
1216547140
13b549a27
14745d692
154c82189
hex3489000

55087104 has 52 divisors (see below), whose sum is σ = 146913776. Its totient is φ = 18358272.

The previous prime is 55087091. The next prime is 55087111. The reversal of 55087104 is 40178055.

It is a nialpdrome in base 8.

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, 10047 + ... + 14529.

Almost surely, 255087104 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55087104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73456888).

55087104 is an abundant number, since it is smaller than the sum of its proper divisors (91826672).

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

55087104 is an equidigital number, since it uses as much as digits as its factorization.

55087104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4510 (or 4488 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 30.

The square root of 55087104 is about 7422.0687143141. The cubic root of 55087104 is about 380.4958992008.

The spelling of 55087104 in words is "fifty-five million, eighty-seven thousand, one hundred four".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 64 96 128 192 256 384 512 768 1024 1536 2048 3072 4096 4483 6144 8966 12288 13449 17932 26898 35864 53796 71728 107592 143456 215184 286912 430368 573824 860736 1147648 1721472 2295296 3442944 4590592 6885888 9181184 13771776 18362368 27543552 55087104