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253415515130250 = 235311219726353897
BaseRepresentation
bin111001100111101011100101…
…110000101000100110001010
31020020021021201222002020200220
4321213223211300220212022
5231203424433333132000
62254545251441410510
7104243444463444654
oct7147534560504612
91206237658066626
10253415515130250
1173822a09842500
122450975b339a36
13ab52c9931ac15
14468153aac16d4
151e46dbbea71a0
hexe67ae5c2898a

253415515130250 has 384 divisors, whose sum is σ = 701454091193856. Its totient is φ = 60888682624000.

The previous prime is 253415515130231. The next prime is 253415515130377. The reversal of 253415515130250 is 52031515514352.

253415515130250 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 4701821302 + ... + 4701875198.

It is an arithmetic number, because the mean of its divisors is an integer number (1826703362484).

Almost surely, 2253415515130250 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 253415515130250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (350727045596928).

253415515130250 is an abundant number, since it is smaller than the sum of its proper divisors (448038576063606).

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

253415515130250 is a wasteful number, since it uses less digits than its factorization.

253415515130250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54399 (or 54378 counting only the distinct ones).

The product of its (nonzero) digits is 450000, while the sum is 42.

The spelling of 253415515130250 in words is "two hundred fifty-three trillion, four hundred fifteen billion, five hundred fifteen million, one hundred thirty thousand, two hundred fifty".