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2031127040 = 2951037703
BaseRepresentation
bin111100100010000…
…1000101000000000
312020112220221111102
41321010020220000
513124432031130
6533314033532
7101222203115
oct17104105000
95215827442
102031127040
11952577898
124882788a8
13264a55327
14153a7c90c
15bd4b0645
hex79108a00

2031127040 has 80 divisors (see below), whose sum is σ = 4917863808. Its totient is φ = 804458496.

The previous prime is 2031127019. The next prime is 2031127057. The reversal of 2031127040 is 407211302.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 259829 + ... + 267531.

Almost surely, 22031127040 is an apocalyptic number.

2031127040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2031127040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2458931904).

2031127040 is an abundant number, since it is smaller than the sum of its proper divisors (2886736768).

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

2031127040 is an equidigital number, since it uses as much as digits as its factorization.

2031127040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7829 (or 7813 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 2031127040 is about 45068.0268039327. The cubic root of 2031127040 is about 1266.4236997816.

Adding to 2031127040 its reverse (407211302), we get a palindrome (2438338342).

The spelling of 2031127040 in words is "two billion, thirty-one million, one hundred twenty-seven thousand, forty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 103 128 160 206 256 320 412 512 515 640 824 1030 1280 1648 2060 2560 3296 4120 6592 7703 8240 13184 15406 16480 26368 30812 32960 38515 52736 61624 65920 77030 123248 131840 154060 246496 263680 308120 492992 616240 793409 985984 1232480 1586818 1971968 2464960 3173636 3943936 3967045 4929920 6347272 7934090 9859840 12694544 15868180 19719680 25389088 31736360 50778176 63472720 101556352 126945440 203112704 253890880 406225408 507781760 1015563520 2031127040