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1039970420 = 22572112
BaseRepresentation
bin111101111111001…
…011000001110100
32200110212222012222
4331333023001310
54112213023140
6251110101512
734525413506
oct7577130164
92613788188
101039970420
11494044195
1225034a898
131375c3418
149c193d76
15614795b5
hex3dfcb074

1039970420 has 18 divisors (see below), whose sum is σ = 2184240786. Its totient is φ = 415930480.

The previous prime is 1039970419. The next prime is 1039970431. The reversal of 1039970420 is 240799301.

It can be written as a sum of positive squares in only one way, i.e., 831976336 + 207994084 = 28844^2 + 14422^2 .

It is a congruent number.

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, 140615 + ... + 147825.

Almost surely, 21039970420 is an apocalyptic number.

1039970420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1039970420 is an abundant number, since it is smaller than the sum of its proper divisors (1144270366).

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

1039970420 is an frugal number, since it uses more digits than its factorization.

1039970420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14431 (or 7218 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 35.

The square root of 1039970420 is about 32248.5723715020. The cubic root of 1039970420 is about 1013.1497981986.

The spelling of 1039970420 in words is "one billion, thirty-nine million, nine hundred seventy thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 7211 14422 28844 36055 72110 144220 51998521 103997042 207994084 259992605 519985210 1039970420