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256930182401 = 1915678629637
BaseRepresentation
bin1110111101001000111…
…0110111010100000001
3220120011220110121011112
43233102032313110001
513202143111314101
6314010533253105
724363653342114
oct3572216672401
9816156417145
10256930182401
1199a66431922
1241965494195
131b2c7a8b339
14c614d9657b
156a3b4416bb
hex3bd23b7501

256930182401 has 8 divisors (see below), whose sum is σ = 270625447680. Its totient is φ = 243252179568.

The previous prime is 256930182283. The next prime is 256930182407. The reversal of 256930182401 is 104281039652.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-256930182401 is a prime.

It is a super-2 number, since 2×2569301824012 (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (256930182407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4285046 + ... + 4344591.

It is an arithmetic number, because the mean of its divisors is an integer number (33828180960).

Almost surely, 2256930182401 is an apocalyptic number.

It is an amenable number.

256930182401 is a deficient number, since it is larger than the sum of its proper divisors (13695265279).

256930182401 is a wasteful number, since it uses less digits than its factorization.

256930182401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8631223.

The product of its (nonzero) digits is 103680, while the sum is 41.

The spelling of 256930182401 in words is "two hundred fifty-six billion, nine hundred thirty million, one hundred eighty-two thousand, four hundred one".

Divisors: 1 19 1567 29773 8629637 163963103 13522641179 256930182401