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554021130 = 235131977211
BaseRepresentation
bin100001000001011…
…011000100001010
31102121111012010010
4201001123010022
52113312134010
6130550332350
716505046645
oct4101330412
91377435103
10554021130
11264804303
1213565a0b6
138aa1a870
1453818a5c
1533989620
hex2105b10a

554021130 has 64 divisors (see below), whose sum is σ = 1439399808. Its totient is φ = 135663360.

The previous prime is 554021123. The next prime is 554021131. The reversal of 554021130 is 31120455.

It is a junction number, because it is equal to n+sod(n) for n = 554021097 and 554021106.

It is not an unprimeable number, because it can be changed into a prime (554021131) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 73225 + ... + 80435.

It is an arithmetic number, because the mean of its divisors is an integer number (22490622).

Almost surely, 2554021130 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 554021130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (719699904).

554021130 is an abundant number, since it is smaller than the sum of its proper divisors (885378678).

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

554021130 is a wasteful number, since it uses less digits than its factorization.

554021130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7431.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 554021130 is about 23537.6534514382. The cubic root of 554021130 is about 821.3131498136.

Adding to 554021130 its reverse (31120455), we get a palindrome (585141585).

The spelling of 554021130 in words is "five hundred fifty-four million, twenty-one thousand, one hundred thirty".

Divisors: 1 2 3 5 6 10 13 15 26 30 39 65 78 130 195 197 390 394 591 985 1182 1970 2561 2955 5122 5910 7211 7683 12805 14422 15366 21633 25610 36055 38415 43266 72110 76830 93743 108165 187486 216330 281229 468715 562458 937430 1406145 1420567 2812290 2841134 4261701 7102835 8523402 14205670 18467371 21308505 36934742 42617010 55402113 92336855 110804226 184673710 277010565 554021130