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2557742023200 = 25352721329311861
BaseRepresentation
bin100101001110000101010…
…011100000001000100000
3100001111222102212021002110
4211032011103200020200
5313401223424220300
65235002132115320
7352535142323400
oct45160523401040
910044872767073
102557742023200
118a6806767a11
1235385a765b40
1315726a3bb880
148bb1c716800
15467ecee3550
hex253854e0220

2557742023200 has 1728 divisors, whose sum is σ = 11143356779520. Its totient is φ = 503967744000.

The previous prime is 2557742023189. The next prime is 2557742023211. The reversal of 2557742023200 is 23202477552.

It is an interprime number because it is at equal distance from previous prime (2557742023189) and next prime (2557742023211).

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 1374390270 + ... + 1374392130.

It is an arithmetic number, because the mean of its divisors is an integer number (6448701840).

Almost surely, 22557742023200 is an apocalyptic number.

2557742023200 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 2557742023200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5571678389760).

2557742023200 is an abundant number, since it is smaller than the sum of its proper divisors (8585614756320).

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

2557742023200 is a wasteful number, since it uses less digits than its factorization.

2557742023200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1971 (or 1951 counting only the distinct ones).

The product of its (nonzero) digits is 235200, while the sum is 39.

The spelling of 2557742023200 in words is "two trillion, five hundred fifty-seven billion, seven hundred forty-two million, twenty-three thousand, two hundred".