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398280601 = 4112377853
BaseRepresentation
bin10111101111010…
…100011110011001
31000202102202021101
4113233110132121
51303424434401
6103304311401
712604220635
oct2757243631
91022382241
10398280601
11194901124
12b1472561
136468bac4
143ac77dc5
1524e74101
hex17bd4799

398280601 has 8 divisors (see below), whose sum is σ = 408376584. Its totient is φ = 388202880.

The previous prime is 398280599. The next prime is 398280661. The reversal of 398280601 is 106082893.

It can be written as a sum of positive squares in 4 ways, for example, as 2310400 + 395970201 = 1520^2 + 19899^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 398280601 - 21 = 398280599 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (398280661) 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, 46791 + ... + 54643.

It is an arithmetic number, because the mean of its divisors is an integer number (51047073).

Almost surely, 2398280601 is an apocalyptic number.

It is an amenable number.

398280601 is a deficient number, since it is larger than the sum of its proper divisors (10095983).

398280601 is a wasteful number, since it uses less digits than its factorization.

398280601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9131.

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 398280601 is about 19956.9687327510. The cubic root of 398280601 is about 735.7490634230.

The spelling of 398280601 in words is "three hundred ninety-eight million, two hundred eighty thousand, six hundred one".

Divisors: 1 41 1237 7853 50717 321973 9714161 398280601