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244457020 = 22512222851
BaseRepresentation
bin11101001001000…
…01111000111100
3122000222200222201
432210201320330
51000040111040
640131321244
76025564453
oct1644417074
9560880881
10244457020
11115a981a5
1269a50224
133b851732
1424675b9a
15166dba9a
hexe921e3c

244457020 has 12 divisors (see below), whose sum is σ = 513359784. Its totient is φ = 97782800.

The previous prime is 244456987. The next prime is 244457023. The reversal of 244457020 is 20754442.

It is a happy number.

244457020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 244457020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (244457023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6111406 + ... + 6111445.

It is an arithmetic number, because the mean of its divisors is an integer number (42779982).

Almost surely, 2244457020 is an apocalyptic number.

244457020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

244457020 is an abundant number, since it is smaller than the sum of its proper divisors (268902764).

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

244457020 is a wasteful number, since it uses less digits than its factorization.

244457020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12222860 (or 12222858 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 28.

The square root of 244457020 is about 15635.1213618571. The cubic root of 244457020 is about 625.2698738522.

The spelling of 244457020 in words is "two hundred forty-four million, four hundred fifty-seven thousand, twenty".

Divisors: 1 2 4 5 10 20 12222851 24445702 48891404 61114255 122228510 244457020