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253354420 = 225111151611
BaseRepresentation
bin11110001100111…
…10000110110100
3122122201201221001
433012132012310
51004324320140
641050133044
76164322424
oct1706360664
9578651831
10253354420
11120014a20
1270a21184
1340648477
1425910484
1517397e9a
hexf19e1b4

253354420 has 24 divisors (see below), whose sum is σ = 580412448. Its totient is φ = 92128800.

The previous prime is 253354333. The next prime is 253354421. The reversal of 253354420 is 24453352.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253354421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 575586 + ... + 576025.

It is an arithmetic number, because the mean of its divisors is an integer number (24183852).

Almost surely, 2253354420 is an apocalyptic number.

253354420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

253354420 is an abundant number, since it is smaller than the sum of its proper divisors (327058028).

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

253354420 is a wasteful number, since it uses less digits than its factorization.

253354420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1151631 (or 1151629 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 28.

The square root of 253354420 is about 15917.1109187566. The cubic root of 253354420 is about 632.7655526966.

It can be divided in two parts, 2533 and 54420, that added together give a triangular number (56953 = T337).

The spelling of 253354420 in words is "two hundred fifty-three million, three hundred fifty-four thousand, four hundred twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 1151611 2303222 4606444 5758055 11516110 12667721 23032220 25335442 50670884 63338605 126677210 253354420