Search a number
-
+
1200757893930 = 2375717461381
BaseRepresentation
bin10001011110010010101…
…111110110101100101010
311020210100212211010000000
4101132102233312230222
5124133123010101210
62315342012523430
7152515620460230
oct21362257665452
94223325733000
101200757893930
11423269589011
1217486b480576
138930061755a
144218d052950
152137b4e6ac0
hex11792bf6b2a

1200757893930 has 256 divisors, whose sum is σ = 3922559032320. Its totient is φ = 258313743360.

The previous prime is 1200757893871. The next prime is 1200757893931. The reversal of 1200757893930 is 393987570021.

1200757893930 is a `hidden beast` number, since 1 + 2 + 0 + 0 + 7 + 578 + 9 + 39 + 30 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (1200757893931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 2371840 + ... + 2833220.

It is an arithmetic number, because the mean of its divisors is an integer number (15322496220).

Almost surely, 21200757893930 is an apocalyptic number.

1200757893930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1200757893930, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1961279516160).

1200757893930 is an abundant number, since it is smaller than the sum of its proper divisors (2721801138390).

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

1200757893930 is an equidigital number, since it uses as much as digits as its factorization.

1200757893930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 461433 (or 461415 counting only the distinct ones).

The product of its (nonzero) digits is 2857680, while the sum is 54.

The spelling of 1200757893930 in words is "one trillion, two hundred billion, seven hundred fifty-seven million, eight hundred ninety-three thousand, nine hundred thirty".