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253490800 = 24523731699
BaseRepresentation
bin11110001101111…
…11011001110000
3122122222200000011
433012333121300
51004343201200
641053104304
76165431143
oct1706773160
9578880004
10253490800
111200a8432
1270a88094
1340695574
142594805a
15173c35ba
hexf1bf670

253490800 has 60 divisors (see below), whose sum is σ = 611003800. Its totient is φ = 101064960.

The previous prime is 253490773. The next prime is 253490801. The reversal of 253490800 is 8094352.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253490801) 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 11 ways as a sum of consecutive naturals, for example, 148351 + ... + 150049.

Almost surely, 2253490800 is an apocalyptic number.

253490800 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 253490800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (305501900).

253490800 is an abundant number, since it is smaller than the sum of its proper divisors (357513000).

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

253490800 is a wasteful number, since it uses less digits than its factorization.

253490800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2090 (or 2079 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 253490800 is about 15921.3944112945. The cubic root of 253490800 is about 632.8790709928.

The spelling of 253490800 in words is "two hundred fifty-three million, four hundred ninety thousand, eight hundred".

Divisors: 1 2 4 5 8 10 16 20 25 40 50 80 100 200 373 400 746 1492 1699 1865 2984 3398 3730 5968 6796 7460 8495 9325 13592 14920 16990 18650 27184 29840 33980 37300 42475 67960 74600 84950 135920 149200 169900 339800 633727 679600 1267454 2534908 3168635 5069816 6337270 10139632 12674540 15843175 25349080 31686350 50698160 63372700 126745400 253490800