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2038816040 = 235197258733
BaseRepresentation
bin111100110000101…
…1101110100101000
312021002101120211012
41321201131310220
513133414103130
6534150523052
7101344436042
oct17141356450
95232346735
102038816040
11956949738
1248a966488
13266518031
14154ac0a92
15bdecd995
hex7985dd28

2038816040 has 32 divisors (see below), whose sum is σ = 4610639880. Its totient is φ = 811383552.

The previous prime is 2038816009. The next prime is 2038816081. The reversal of 2038816040 is 406188302.

It can be written as a sum of positive squares in 4 ways, for example, as 1692335044 + 346480996 = 41138^2 + 18614^2 .

It is a super-2 number, since 2×20388160402 = 8313541689922563200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2038815988 and 2038816006.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121487 + ... + 137246.

Almost surely, 22038816040 is an apocalyptic number.

2038816040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2038816040 is an abundant number, since it is smaller than the sum of its proper divisors (2571823840).

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

2038816040 is a wasteful number, since it uses less digits than its factorization.

2038816040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258941 (or 258937 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 2038816040 is about 45153.2506028082. The cubic root of 2038816040 is about 1268.0197381716.

The spelling of 2038816040 in words is "two billion, thirty-eight million, eight hundred sixteen thousand, forty".

Divisors: 1 2 4 5 8 10 20 40 197 394 788 985 1576 1970 3940 7880 258733 517466 1034932 1293665 2069864 2587330 5174660 10349320 50970401 101940802 203881604 254852005 407763208 509704010 1019408020 2038816040