Search a number
-
+
39893600256 = 2113171931979
BaseRepresentation
bin100101001001110110…
…000000100000000000
310210222020211212111020
4211021312000200000
51123200230202011
630154334145440
72611413002316
oct451166004000
9123866755436
1039893600256
1115a11996374
127894352280
1339ba00ab33
141d063d20b6
1510874bb006
hex949d80800

39893600256 has 192 divisors, whose sum is σ = 113253940800. Its totient is φ = 12444499968.

The previous prime is 39893600233. The next prime is 39893600269. The reversal of 39893600256 is 65200639893.

It is a tau number, because it is divible by the number of its divisors (192).

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a junction number, because it is equal to n+sod(n) for n = 39893600199 and 39893600208.

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, 20157475 + ... + 20159453.

It is an arithmetic number, because the mean of its divisors is an integer number (589864275).

Almost surely, 239893600256 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 39893600256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56626970400).

39893600256 is an abundant number, since it is smaller than the sum of its proper divisors (73360340544).

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

39893600256 is a wasteful number, since it uses less digits than its factorization.

39893600256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2214 (or 2194 counting only the distinct ones).

The product of its (nonzero) digits is 2099520, while the sum is 51.

The spelling of 39893600256 in words is "thirty-nine billion, eight hundred ninety-three million, six hundred thousand, two hundred fifty-six".