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1042420000 = 255452121
BaseRepresentation
bin111110001000100…
…001000100100000
32200122111102102011
4332020201010200
54113324420000
6251234402304
734555265236
oct7610410440
92618442364
101042420000
11495467636
12251130394
13137c7038b
149c630956
15617b02ba
hex3e221120

1042420000 has 60 divisors (see below), whose sum is σ = 2564558766. Its totient is φ = 416960000.

The previous prime is 1042419913. The next prime is 1042420031. The reversal of 1042420000 is 242401.

It can be written as a sum of positive squares in 5 ways, for example, as 54700816 + 987719184 = 7396^2 + 31428^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 6061 + ... + 46060.

Almost surely, 21042420000 is an apocalyptic number.

1042420000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1042420000 is an abundant number, since it is smaller than the sum of its proper divisors (1522138766).

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

1042420000 is an frugal number, since it uses more digits than its factorization.

1042420000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52151 (or 52128 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 1042420000 is about 32286.5296989317. The cubic root of 1042420000 is about 1013.9446430701.

Adding to 1042420000 its reverse (242401), we get a palindrome (1042662401).

The spelling of 1042420000 in words is "one billion, forty-two million, four hundred twenty thousand".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 80 100 125 160 200 250 400 500 625 800 1000 1250 2000 2500 4000 5000 10000 20000 52121 104242 208484 260605 416968 521210 833936 1042420 1303025 1667872 2084840 2606050 4169680 5212100 6515125 8339360 10424200 13030250 20848400 26060500 32575625 41696800 52121000 65151250 104242000 130302500 208484000 260605000 521210000 1042420000