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1010215430440 = 23525255385761
BaseRepresentation
bin11101011001101011000…
…10000010100100101000
310120120112122120001121121
432230311202002210220
5113022410122233230
62052030410345024
7132662036323036
oct16546542024450
93516478501547
101010215430440
1135a480301a97
1214395312b174
13743557b3838
1436c75047556
151b4284ca77a
hexeb35882928

1010215430440 has 16 divisors (see below), whose sum is σ = 2272984718580. Its totient is φ = 404086172160.

The previous prime is 1010215430383. The next prime is 1010215430443. The reversal of 1010215430440 is 440345120101.

It can be written as a sum of positive squares in 2 ways, for example, as 1009506486564 + 708943876 = 1004742^2 + 26626^2 .

It is not an unprimeable number, because it can be changed into a prime (1010215430443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12627692841 + ... + 12627692920.

Almost surely, 21010215430440 is an apocalyptic number.

1010215430440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1010215430440 is an abundant number, since it is smaller than the sum of its proper divisors (1262769288140).

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

1010215430440 is a wasteful number, since it uses less digits than its factorization.

1010215430440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25255385772 (or 25255385768 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The spelling of 1010215430440 in words is "one trillion, ten billion, two hundred fifteen million, four hundred thirty thousand, four hundred forty".

Divisors: 1 2 4 5 8 10 20 40 25255385761 50510771522 101021543044 126276928805 202043086088 252553857610 505107715220 1010215430440