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253381104 = 24323121831
BaseRepresentation
bin11110001101001…
…00100111110000
3122122210002112100
433012210213300
51004331143404
641050500400
76164463264
oct1706444760
9578702470
10253381104
11120032a79
1270a34700
1340657662
142591a0a4
15173a0d39
hexf1a49f0

253381104 has 90 divisors (see below), whose sum is σ = 733127928. Its totient is φ = 81691200.

The previous prime is 253381099. The next prime is 253381111. The reversal of 253381104 is 401183352.

It is a happy number.

253381104 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 137469 + ... + 139299.

Almost surely, 2253381104 is an apocalyptic number.

253381104 is a gapful number since it is divisible by the number (24) 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 253381104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (366563964).

253381104 is an abundant number, since it is smaller than the sum of its proper divisors (479746824).

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

253381104 is a wasteful number, since it uses less digits than its factorization.

253381104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1907 (or 1867 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 253381104 is about 15917.9491141290. The cubic root of 253381104 is about 632.7877667992.

The spelling of 253381104 in words is "two hundred fifty-three million, three hundred eighty-one thousand, one hundred four".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 31 36 48 62 72 93 124 144 186 248 279 372 496 558 744 961 1116 1488 1831 1922 2232 2883 3662 3844 4464 5493 5766 7324 7688 8649 10986 11532 14648 15376 16479 17298 21972 23064 29296 32958 34596 43944 46128 56761 65916 69192 87888 113522 131832 138384 170283 227044 263664 340566 454088 510849 681132 908176 1021698 1362264 1759591 2043396 2724528 3519182 4086792 5278773 7038364 8173584 10557546 14076728 15836319 21115092 28153456 31672638 42230184 63345276 84460368 126690552 253381104