Search a number
-
+
55550005576 = 23131959347407
BaseRepresentation
bin110011101111000010…
…011101000101001000
312022101101010122222221
4303233002131011020
51402231300134301
641304101223424
74004403154012
oct635702350510
9168341118887
1055550005576
112161659141a
12a923701b74
1353138414b0
14298d8831b2
1516a1c40da1
hexcef09d148

55550005576 has 64 divisors (see below), whose sum is σ = 118273478400. Its totient is φ = 24247600128.

The previous prime is 55550005543. The next prime is 55550005583. The reversal of 55550005576 is 67550005555.

It is a super-3 number, since 3×555500055763 (a number of 33 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1148065 + ... + 1195471.

It is an arithmetic number, because the mean of its divisors is an integer number (1848023100).

Almost surely, 255550005576 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 55550005576, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59136739200).

55550005576 is an abundant number, since it is smaller than the sum of its proper divisors (62723472824).

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

55550005576 is a wasteful number, since it uses less digits than its factorization.

55550005576 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48038 (or 48034 counting only the distinct ones).

The product of its (nonzero) digits is 656250, while the sum is 43.

The spelling of 55550005576 in words is "fifty-five billion, five hundred fifty million, five thousand, five hundred seventy-six".

Divisors: 1 2 4 8 13 19 26 38 52 76 104 152 247 494 593 988 1186 1976 2372 4744 7709 11267 15418 22534 30836 45068 47407 61672 90136 94814 146471 189628 292942 379256 585884 616291 900733 1171768 1232582 1801466 2465164 3602932 4930328 7205864 11709529 23419058 28112351 46838116 56224702 93676232 112449404 224898808 365460563 534134669 730921126 1068269338 1461842252 2136538676 2923684504 4273077352 6943750697 13887501394 27775002788 55550005576