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15420455300 = 2252154204553
BaseRepresentation
bin11100101110010000…
…10111100110000100
31110210200022021221002
432113020113212010
5223040114032200
611030053512432
71054063464425
oct162710274604
943720267832
1015420455300
1165a3499338
122ba4342718
1315b99a0083
14a63dd164c
15603bb8bd5
hex397217984

15420455300 has 18 divisors (see below), whose sum is σ = 33462388218. Its totient is φ = 6168182080.

The previous prime is 15420455299. The next prime is 15420455381. The reversal of 15420455300 is 355402451.

It can be written as a sum of positive squares in 3 ways, for example, as 13191424 + 15407263876 = 3632^2 + 124126^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 77102177 + ... + 77102376.

Almost surely, 215420455300 is an apocalyptic number.

15420455300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15420455300 is an abundant number, since it is smaller than the sum of its proper divisors (18041932918).

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

15420455300 is a wasteful number, since it uses less digits than its factorization.

15420455300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154204567 (or 154204560 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 29.

Adding to 15420455300 its reverse (355402451), we get a palindrome (15775857751).

The spelling of 15420455300 in words is "fifteen billion, four hundred twenty million, four hundred fifty-five thousand, three hundred".

Divisors: 1 2 4 5 10 20 25 50 100 154204553 308409106 616818212 771022765 1542045530 3084091060 3855113825 7710227650 15420455300