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253472996 = 22719523911
BaseRepresentation
bin11110001101110…
…11000011100100
3122122221202120202
433012323003210
51004342113441
641052450032
76165325220
oct1706730344
9578852522
10253472996
11120096017
1270a79918
134068a42a
1425941780
15173bd19b
hexf1bb0e4

253472996 has 48 divisors (see below), whose sum is σ = 535234560. Its totient is φ = 102604320.

The previous prime is 253472983. The next prime is 253473037. The reversal of 253472996 is 699274352.

It is a self number, because there is not a number n which added to its sum of digits gives 253472996.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 277781 + ... + 278691.

It is an arithmetic number, because the mean of its divisors is an integer number (11150720).

Almost surely, 2253472996 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 253472996, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (267617280).

253472996 is an abundant number, since it is smaller than the sum of its proper divisors (281761564).

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

253472996 is a wasteful number, since it uses less digits than its factorization.

253472996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1464 (or 1462 counting only the distinct ones).

The product of its digits is 816480, while the sum is 47.

The square root of 253472996 is about 15920.8352795951. The cubic root of 253472996 is about 632.8642538308.

The spelling of 253472996 in words is "two hundred fifty-three million, four hundred seventy-two thousand, nine hundred ninety-six".

Divisors: 1 2 4 7 14 19 28 38 76 133 266 523 532 911 1046 1822 2092 3644 3661 6377 7322 9937 12754 14644 17309 19874 25508 34618 39748 69236 69559 121163 139118 242326 278236 476453 484652 952906 1905812 3335171 6670342 9052607 13340684 18105214 36210428 63368249 126736498 253472996