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1554130040 = 23583946309
BaseRepresentation
bin101110010100010…
…0010010001111000
311000022100222121212
41130220202101320
511140324130130
6414114222252
753340613241
oct13450422170
94008328555
101554130040
117282a19a1
12374584988
131b9c95498
1410a593cc8
159168ce95
hex5ca22478

1554130040 has 32 divisors (see below), whose sum is σ = 3501036000. Its totient is φ = 620897664.

The previous prime is 1554130013. The next prime is 1554130043. The reversal of 1554130040 is 400314551.

It is a junction number, because it is equal to n+sod(n) for n = 1554129988 and 1554130015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1554130043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10406 + ... + 56714.

It is an arithmetic number, because the mean of its divisors is an integer number (109407375).

Almost surely, 21554130040 is an apocalyptic number.

1554130040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1554130040 is an abundant number, since it is smaller than the sum of its proper divisors (1946905960).

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

1554130040 is a wasteful number, since it uses less digits than its factorization.

1554130040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47159 (or 47155 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 1554130040 is about 39422.4560371370. The cubic root of 1554130040 is about 1158.3215022629.

Adding to 1554130040 its reverse (400314551), we get a palindrome (1954444591).

The spelling of 1554130040 in words is "one billion, five hundred fifty-four million, one hundred thirty thousand, forty".

Divisors: 1 2 4 5 8 10 20 40 839 1678 3356 4195 6712 8390 16780 33560 46309 92618 185236 231545 370472 463090 926180 1852360 38853251 77706502 155413004 194266255 310826008 388532510 777065020 1554130040